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EP2368971B1 - Use of a combination of a mixture of fatty acid methyl esters in C16-C20 castor oil with at least one ethoxylated glyceride as a cleaning agent - Google Patents

Use of a combination of a mixture of fatty acid methyl esters in C16-C20 castor oil with at least one ethoxylated glyceride as a cleaning agent Download PDF

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Publication number
EP2368971B1
EP2368971B1 EP10305274.2A EP10305274A EP2368971B1 EP 2368971 B1 EP2368971 B1 EP 2368971B1 EP 10305274 A EP10305274 A EP 10305274A EP 2368971 B1 EP2368971 B1 EP 2368971B1
Authority
EP
European Patent Office
Prior art keywords
weight
composition
castor oil
fatty acid
acid methyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10305274.2A
Other languages
German (de)
French (fr)
Other versions
EP2368971A1 (en
Inventor
M. Yann Denolle
M. Victor Seita
M. Vincent Delaire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DELAIRE, VINCENT
DENOLLE, YANN
SEITA, VICTOR
Original Assignee
DENOLLE Yann
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Publication date
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Priority to EP10305274.2A priority Critical patent/EP2368971B1/en
Publication of EP2368971A1 publication Critical patent/EP2368971A1/en
Application granted granted Critical
Publication of EP2368971B1 publication Critical patent/EP2368971B1/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2093Esters; Carbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/667Neutral esters, e.g. sorbitan esters
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/74Carboxylates or sulfonates esters of polyoxyalkylene glycols
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/38Products with no well-defined composition, e.g. natural products
    • C11D3/382Vegetable products, e.g. soya meal, wood flour, sawdust
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43Solvents
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10Objects to be cleaned
    • C11D2111/14Hard surfaces

Definitions

  • the present invention relates to the use as a cleaning agent of a combination of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil with at least one ethoxylated glyceride, as well as compositions comprising such an association.
  • EP 0 527 315 A2 discloses a liquid product, in microemulsion form, for washing and cleaning blankets in offset printing machines, said product containing: (a) 5-40% by weight of caprylic or capric acid partial glyceride ethoxylated with 5 to 50 moles of ethylene, (b) 1-10% by weight of 1,2-bis- (oxazolin-2-) ethane, and (c) 10-90% by weight of at least one methyl ester of fatty acid selected from caprylic acid (C 8 fatty acid), capric acid (C 10 fatty acid), lauric acid (C 12 fatty acid), myristic acid (C 14 fatty acid) ) or coconut oil (which contains at least 40% lauric acid - C 12 fatty acid).
  • FR 2 907 128 describes compositions usable for the removal of paints and varnishes comprising at least one fatty acid ester and at least one oxygenated solvent, the fatty acid ester possibly being methyl esters derived from fatty acids derived from castor oil, such than Esterol® A.
  • US 5,194,173 relates to a cleaning agent for removing inks and other oily contaminants from printers, metal plates for printers and blankets comprising a C 6 or higher fatty acid alkyl ester preferably containing from 8 to 22 carbon atoms.
  • the inventors then surprisingly discovered that the castor oil C 16 -C 20 fatty acid methyl esters had a high solvent power while leaving after use a satin and dry film which also seems to play a protective role. , in particular by reducing the oxidation of the metal surfaces.
  • the methyl esters of C 16 -C 20 fatty acids castor oil are moreover biodegradable and are therefore not harmful to the environment. Castor has the added benefit of growing on non-arable land.
  • ethoxylated glycerides also makes it possible to obtain emulsifiable compositions and to increase the cleaning power of such a composition.
  • this type of nonionic surfactant has the advantage of being a very good anti-stain agent. It also has the properties of a non-foaming and / or viscosifying agent (i.e. increasing the viscosity of a composition).
  • compositions comprising such a combination of C 16 -C 20 fatty acid methyl esters of castor oil and at least one ethoxylated glyceride have the additional advantage of having a neutral pH.
  • the present invention thus has as its first object the use as cleaning agent of a combination of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the acids C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, with at least one ethoxylated glyceride.
  • the mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 fatty acid mixture C 20 castor oil, is especially useful as cleaning and degreasing and ethoxylated glyceride is useful both as a cleaning agent and emulsifier.
  • the compositions comprising such an association are therefore emulsifiable.
  • castor oil fatty acid esters may be substituted equivalently for the term “castor oil C 16 -C 20 fatty acid methyl esters”.
  • the term "castor oil C 16 -C 20 fatty acids” means a mixture of fatty acids derived from castor oil comprising a saturated or unsaturated linear hydrocarbon-based chain, comprising 16 to 20 carbon atoms (including that of the terminal carboxylic acid function). These fatty acids therefore do not include ricinoleic acid which can not be considered as a fatty acid since it comprises a hydroxyl (OH) function on its side chain. They will also comprise mainly C 16 and C 18 fatty acids (at least 80%, preferably at least 90%, and more preferably at least 95% by weight relative to the fatty acid mixture).
  • C 18 fatty acids will include more particularly stearic acid, oleic acid, linoleic acid and linolenic acid, and C 16 fatty acids will more particularly include palmitic acid.
  • the C 18 fatty acids represent at least 70%, in particular at least 75%, and more particularly at least 80% by weight relative to the total weight of the castor oil C 16 -C 20 fatty acid mixture .
  • Dehscofix ® CO125 corresponding to a compound of formula (I) for which x + y +
  • the ethoxylated glyceride will preferably be of plant origin.
  • ethoxylated glyceride in the composition allows in particular the rinsing with water of the cleaned hard surface, as well as the formation of an emulsion of castor oil fatty acid esters with water. when the fatty acid esters of castor oil are used diluted in water, in particular up to 20 - 30%.
  • a composition comprising such a combination may be applied by brush, cloth, spray (especially under pressure), by spraying or by immersion, optionally in the presence of ultrasound.
  • It can be used diluted in water and can be used with or without rinsing with water.
  • It can also be used cold or hot, that is to say at a temperature between -5 ° C and 80 ° C.
  • An association according to the invention may be contained in particular in a composition as defined below in the second subject of the invention.
  • Such an association may be used in a surface treatment composition, and in particular in a composition intended for cleaning and degreasing or in a penetrating composition, for any type of hard surface, particularly based on metal such as iron, plastic, elastomer or rubber, especially in industrial installations (printing works, garages, warehouses, mechanical workshops, factories, oil drilling sites, etc.) or community buildings.
  • a surface treatment composition and in particular in a composition intended for cleaning and degreasing or in a penetrating composition, for any type of hard surface, particularly based on metal such as iron, plastic, elastomer or rubber, especially in industrial installations (printing works, garages, warehouses, mechanical workshops, factories, oil drilling sites, etc.) or community buildings.
  • penetrating or “penetrating composition” is meant in particular, in the sense of the present invention, a composition for unlocking a part that may be particularly corroded. Such a composition makes it possible in particular within the scope of the present invention to eliminate rust or any other oxidation product.
  • hard surface is understood to mean, for example, floors, walls, machine frames, engines (automobiles, motorcycles, trucks, boats, etc.), fuel tanks or even the tools.
  • bitumen such as Judea bitumen
  • paints inks
  • petroleum derivatives including crude oil, fats, oils, heavy fuel oil, rust or any other oxidation product, etc.
  • Such an association can be used alone or added with one or more additives, especially chosen from solvents (in particular of plant origin), ionic surfactants (especially anionic surfactants), other nonionic surfactants (such as esters and fatty acid amides), other cleaning agents, antifreezes, dyes, fragrances, preservatives and salts.
  • solvents in particular of plant origin
  • ionic surfactants especially anionic surfactants
  • other nonionic surfactants such as esters and fatty acid amides
  • other cleaning agents such as esters and fatty acid amides
  • the solvent may be water and / or bioethanol (solvent of vegetable origin).
  • the anionic surfactant may be sodium lauryl ether sulphate.
  • the antifreeze agent may be glycol monopropylene, isopropyl laurate, or a mixture thereof, which enables work at lower temperatures.
  • the cleaning agent may be ethyl lactate.
  • fatty acid is intended to mean a compound of formula R-COOH comprising 6 to 22 carbon atoms, preferably 10 to 20 carbon atoms, in which R represents a linear, saturated or unsaturated hydrocarbon chain ( R thus comprising 5 to 21, preferably 9 to 19, carbon atoms).
  • fatty acid ester is intended to mean a compound of formula R-COO-R a , where R is as defined above and R a is a C 1 -C 4 alkyl group.
  • C 6 as defined above, and in particular is isopropyl. It may be in particular isopropyl laurate, product also having antifreeze properties.
  • fatty acid amide means a compound of formula R-CO-NR b R c , where R is as defined above and R b and R c represent, independently from each other, a C 1 to C 6 alkyl group as defined above, optionally substituted with an OH group; and in particular a CH 2 CH 2 OH group. It may be in particular a mixture of fatty acid amides such as coconut diethanolamide.
  • the combination is used in a composition used for heavy work, for cleaning and degreasing very dirty and / or very greasy hard surfaces such as engines, tools, fuel tanks, etc. or in a penetrating composition.
  • the mixture of castor oil fatty acid esters for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, will represent at least 60%, preferably at least 70%, and especially between 70% and 99% by weight of the total weight of the composition.
  • the ethoxylated glyceride will advantageously represent 1 to 15%, preferably 1 to 10% by weight of the total weight of the composition.
  • the ethoxylated glyceride will be used in an ethoxylated glyceride weight ratio on castor oil fatty acid esters of between 0.1% and 20%, advantageously between 3% and 15%.
  • the composition may also comprise a solvent of plant origin such as bioethanol, in order to increase the solvent power of castor oil fatty acid esters and / or a nonionic surfactant such as an amide fatty acid such as coconut diethanolamide and / or other cleaning agent such as ethyl lactate.
  • a solvent of plant origin such as bioethanol
  • a nonionic surfactant such as an amide fatty acid such as coconut diethanolamide and / or other cleaning agent such as ethyl lactate.
  • the composition is used for cleaning and degreasing, and in particular at neutral pH, hard, lightly soiled and / or low-fat surfaces (that is to say for regular cleaning), in particular walls, floors , machine chassis, etc.
  • the mixture of castor oil fatty acid esters will be from 1% to 10%, preferably from 2% to 5%, by weight of the total weight of the components of the composition other than water.
  • the ethoxylated glyceride will advantageously represent 10 to 75%, preferably 30 to 60% by weight of the total weight of the components of the composition other than water.
  • composition will be used in a form diluted in water (the diluted formulation then containing from 0.1% to 5%, preferably from 0.5% to 2% by weight of components other than water, relative to the total weight of the diluted formulation).
  • the composition will comprise at least one solvent of plant origin such as bioethanol and / or at least one anionic surfactant such as sodium lauryl ether sulphate and / or at least one antifreeze agent.
  • solvent of plant origin such as bioethanol
  • anionic surfactant such as sodium lauryl ether sulphate
  • antifreeze agent such as monopropylene glycol or isopropyl laurate.
  • This composition will more particularly be a hard surface treatment composition as defined above, and in particular a composition intended to cleaning and degreasing of hard surface or a penetrating composition.
  • the hard surface may be based on metal such as iron, plastic, elastomer or rubber, especially in industrial facilities (printing plants, garages, warehouses, mechanical workshops, factories, oil drilling sites, etc. .) or community buildings.
  • metal such as iron, plastic, elastomer or rubber, especially in industrial facilities (printing plants, garages, warehouses, mechanical workshops, factories, oil drilling sites, etc. .) or community buildings.
  • This composition has in particular a neutral pH.
  • the ethoxylated glyceride will advantageously meet the formula (I) above. It will preferably be of plant origin. It may be glycereth-17 cocoate, ethoxylated castor oil (comprising in particular ethoxyl units), or a mixture thereof.
  • the solvent may be water and / or bioethanol (solvent of vegetable origin).
  • the anionic surfactant may be sodium lauryl ether sulphate.
  • the nonionic surfactant may be a fatty acid ester such as isopropyl laurate, a fatty acid amide such as coconut diethanolamide, or a mixture thereof.
  • the antifreeze agent may be monopropylene glycol, isopropyl laurate or a mixture thereof.
  • the cleaning agent may be ethyl lactate.
  • the composition may also comprise at least one additive chosen from dyes, perfumes, preservatives and salts, or any other additive conventionally used in such a composition.
  • the composition will be more particularly intended for heavy work, for cleaning and degreasing very dirty and / or very greasy hard surfaces such as engines, tools, fuel tanks, etc. or a penetrating composition.
  • the mixture of castor oil fatty acid esters for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, will represent at least 60%, preferably at least 70%, especially 70 to 99% by weight of the total weight of the composition
  • the ethoxylated glyceride will advantageously represent in this case 1 to 15%, preferably 1 to 10% by weight of the total weight of the composition.
  • the ethoxylated glyceride will be used in an ethoxylated glyceride weight ratio on castor oil fatty acid esters of between 0.1% and 20%, advantageously between 3% and 15%.
  • the composition is more particularly intended for the cleaning and degreasing of hard surfaces that are lightly soiled and / or not very greasy (that is for a regular cleaning), in particular walls, floors, machine frames. etc.
  • the mixture of castor oil fatty acid esters will preferably be from 1% to 10%, preferably from 2% to 5%, by weight of the total weight of the components of the composition other than water.
  • the ethoxylated glyceride will advantageously represent 10 to 75%, preferably 30 to 60%, by weight of the total weight of the components of the composition other than water.
  • composition will also comprise at least one anionic surfactant such as sodium lauryl ether sulphate and / or at least one solvent of plant origin such as bioethanol and / or at least one anti-freeze agent such as monopropylene glycol. or isopropyl laurate.
  • anionic surfactant such as sodium lauryl ether sulphate
  • solvent of plant origin such as bioethanol
  • anti-freeze agent such as monopropylene glycol. or isopropyl laurate.
  • the composition may be formulated in a concentrated form, to be diluted in water before use, especially at a level of 2 to 20% (the diluted formulation then containing from 0.1% to 5%, preferably from 0.5% to 2% by weight of components other than water, relative to the total weight of the diluted formulation).
  • a concentrated formulation may comprise in particular from 60 to 80%, preferably about 75%, by weight of water relative to the total weight of the composition.
  • compositions C1 to C4 according to the invention described in the following tables were prepared. They are more suitable for wholesale for heavy work, for cleaning and degreasing very dirty and / or very greasy hard surfaces such as engines, tools, fuel tanks, etc. or as a releasing agent (composition C1).
  • composition C5 according to the invention described in the following table was prepared. It is more suitable for cleaning hard and slightly greasy hard surfaces. It will advantageously be used in a diluted form in water of 2 to 5%, or even up to 20% for stains that are more difficult to clean.
  • Quantities in kg
  • Water 748 Lauryl ether sodium sulphate 38
  • Glycereth-17 cocoate (Levenol ® C-201)
  • Mono propylene glycol 10 Mixture of methyl esters of castor oil fatty acids (Estérol ® A) 9.5 Dye 0.0025
  • the three formulations A to C based on a mixture of methyl esters of castor oil fatty acids were prepared. The percentages are given by weight relative to the total weight of the formulation.
  • compositions A, B, C, X and Y were then applied by spraying, compositions A, B and X being used pure while emulsifiable compositions C and Y being used in diluted form in water at 30%.
  • the surface of the glass is wiped with a wiped wiping paper, then with a wiping paper impregnated with the composition in the case of bitumen.
  • compositions A and X, and C and Y were compared with one another because of their similarity of formulation. It is thus found that the compositions based on a mixture of castor oil fatty acid esters have a better degreasing power than the compositions based on sunflower oil.
  • the plates were then immersed in a 0.5% sulfuric acid solution for 24 hours.
  • compositions C and Y were diluted 30% with water and mixed to form an emulsion. The compositions were then left to stand.
  • the emulsified composition C starts to shift out after 30 minutes and is still not separated into two phases after 1 week.
  • a glycerophthalic paint was deposited on a glass plate and allowed to dry for 24 hours.
  • a granular molded plastic surface is rubbed back and forth over an area of about 10 x 30 cm with a wiping paper soaked in composition A, B or X. It is allowed to stand for 30 minutes before observing. area.
  • sunflower oil-based composition left a glossy and greasy film, while the composition based on a mixture of castor oil fatty acid esters left a satin film, dry and not fat.
  • the oily or non-greasy nature of the film was controlled by applying paper to the plastic surface and observing the formation or otherwise of a recognizable greasy work on the paper.

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Description

La présente invention concerne l'utilisation en tant qu'agent de nettoyage d'une association d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin avec au moins un glycéride éthoxylé, ainsi que des compositions comprenant une telle association.The present invention relates to the use as a cleaning agent of a combination of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil with at least one ethoxylated glyceride, as well as compositions comprising such an association.

Les produits utilisés couramment pour nettoyer les taches de graisses, d'huiles, d'encres ou encore de dérivés pétroliers sont souvent à base d'hydrocarbures qui sont préparés à partir du pétrole ou sont fortement alcalins.The products commonly used to clean grease stains, oils, inks or petroleum derivatives are often based on hydrocarbons that are prepared from petroleum or are highly alkaline.

Du fait de l'impact néfaste de ces produits sur l'environnement et sur la santé des personnes, des produits plus écologiques ont été développés à base d'huile de tournesol ou de soja. Cependant, ces produits présentent le désavantage de laisser un film brillant et gras après utilisation.Due to the negative impact of these products on the environment and on the health of people, more ecological products have been developed based on sunflower oil or soya. However, these products have the disadvantage of leaving a glossy and greasy film after use.

EP 0 527 315 A2 décrit un produit liquide, sous forme de microémulsion, pour le lavage-nettoyage de blanchets dans des machines pour impression en offset, ledit produit contenant: (a) 5-40 % en poids de glycéride partiel d'acide caprylique ou caprique éthoxylé avec 5 à 50 moles d'éthylène, (b) 1-10 % en poids de 1,2-bis-(oxazolin-2-) éthane, et (c) 10-90 % en poids d'au moins un ester méthylique d'acide gras choisi parmi l'acide caprylique (acide gras en C8), l'acide caprique (acide gras en C10), l'acide laurique (acide gras en C12), l'acide myristique (acide gras en C14) ou l'huile de coprah (qui comprend au moins 40% d'acide laurique - acide gras en C12). EP 0 527 315 A2 discloses a liquid product, in microemulsion form, for washing and cleaning blankets in offset printing machines, said product containing: (a) 5-40% by weight of caprylic or capric acid partial glyceride ethoxylated with 5 to 50 moles of ethylene, (b) 1-10% by weight of 1,2-bis- (oxazolin-2-) ethane, and (c) 10-90% by weight of at least one methyl ester of fatty acid selected from caprylic acid (C 8 fatty acid), capric acid (C 10 fatty acid), lauric acid (C 12 fatty acid), myristic acid (C 14 fatty acid) ) or coconut oil (which contains at least 40% lauric acid - C 12 fatty acid).

FR 2 907 128 décrit des compositions utilisables pour l'élimination de peintures et vernis comprenant au moins un ester d'acide gras et au moins un solvant oxygéné, l'ester d'acide gras pouvant être des esters méthyliques dérivés d'acides gras dérivés du ricin, tel que l'Esterol® A. FR 2 907 128 describes compositions usable for the removal of paints and varnishes comprising at least one fatty acid ester and at least one oxygenated solvent, the fatty acid ester possibly being methyl esters derived from fatty acids derived from castor oil, such than Esterol® A.

US 5,194,173 concerne un agent nettoyant pour éliminer les encres et autres contaminants huileux d'imprimantes, de plaques de métal pour imprimantes et de blanchets comprenant un ester alkylique en C6 ou plus d'acide gras contenant de préférence de 8 à 22 atomes de carbone. US 5,194,173 relates to a cleaning agent for removing inks and other oily contaminants from printers, metal plates for printers and blankets comprising a C 6 or higher fatty acid alkyl ester preferably containing from 8 to 22 carbon atoms.

Les inventeurs ont alors découvert de manière surprenante que les esters méthyliques d'acides gras en C16-C20 d'huile de ricin présentaient un fort pouvoir solvant tout en laissant après utilisation un film satiné et sec qui semble en outre jouer un rôle protecteur, notamment en diminuant l'oxydation des surfaces métalliques. Les esters méthyliques d'acides gras en C16-C20 d'huile de ricin sont de plus biodégradables et ne sont donc pas néfastes pour l'environnement. Le ricin présente l'intérêt supplémentaire de pousser sur des terres non arables.The inventors then surprisingly discovered that the castor oil C 16 -C 20 fatty acid methyl esters had a high solvent power while leaving after use a satin and dry film which also seems to play a protective role. , in particular by reducing the oxidation of the metal surfaces. The methyl esters of C 16 -C 20 fatty acids castor oil are moreover biodegradable and are therefore not harmful to the environment. Castor has the added benefit of growing on non-arable land.

L'utilisation de glycérides éthoxylés permet en outre d'obtenir des compositions émulsionnables et d'augmenter le pouvoir nettoyant d'une telle composition. En effet, en plus d'être un agent émulsionnant, ce type de tensioactif non ionique présente l'avantage d'être un très bon agent anti-tâche. Il possède également les propriétés d'un agent non moussant et/ou viscosant (c'est-à-dire augmentant la viscosité d'une composition).The use of ethoxylated glycerides also makes it possible to obtain emulsifiable compositions and to increase the cleaning power of such a composition. Indeed, in addition to being an emulsifying agent, this type of nonionic surfactant has the advantage of being a very good anti-stain agent. It also has the properties of a non-foaming and / or viscosifying agent (i.e. increasing the viscosity of a composition).

Les compositions comprenant une telle association d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin et d'au moins un glycéride éthoxylé présente l'avantage supplémentaire d'avoir un pH neutre.Compositions comprising such a combination of C 16 -C 20 fatty acid methyl esters of castor oil and at least one ethoxylated glyceride have the additional advantage of having a neutral pH.

La présente invention a ainsi pour premier objet l'utilisation en tant qu'agent de nettoyage d'une association d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin, avec au moins un glycéride éthoxylé.The present invention thus has as its first object the use as cleaning agent of a combination of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the acids C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, with at least one ethoxylated glyceride.

Le mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin, est plus particulièrement utile en tant qu'agent de nettoyage et de dégraissage et le glycéride éthoxylé est utile à la fois en tant qu'agent nettoyant et agent émulsionnant. Les compositions comprenant une telle association sont donc émulsionnables.The mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 fatty acid mixture C 20 castor oil, is especially useful as cleaning and degreasing and ethoxylated glyceride is useful both as a cleaning agent and emulsifier. The compositions comprising such an association are therefore emulsifiable.

Dans le présent document, le terme « esters d'acides gras d'huile de ricin » pourra être substitué de manière équivalente au terme «esters méthyliques d'acides gras en C16-C20 d'huile de ricin ».As used herein, the term "castor oil fatty acid esters" may be substituted equivalently for the term "castor oil C 16 -C 20 fatty acid methyl esters".

Par « acides gras en C16-C20 d'huile de ricin », on entend, au sens de la présente invention, un mélange d'acides gras issus de l'huile de ricin comprenant une chaîne hydrocarbonée linéaire, saturée ou insaturée, comprenant 16 à 20 atomes de carbone (y compris celui de la fonction acide carboxylique terminale). Ces acides gras ne comprennent donc pas l'acide ricinoléique qui ne peut être considéré comme un acide gras puisqu'il comprend une fonction hydroxy (OH) sur sa chaîne latérale. Ils comprendront en outre majoritairement des acides gras en C16 et C18 (au moins 80%, de préférence au moins 90%, et encore de préférence au moins 95% en poids par rapport au mélange d'acides gras). Les acides gras en C18 comprendront plus particulièrement de l'acide stéarique, de l'acide oléique, de l'acide linoléique et de l'acide linolénique, et les acides gras en C16 comprendront plus particulièrement de l'acide palmitique. Les acides gras en C18 représentent au moins 70%, en particulier au moins 75%, et plus particulièrement au moins 80% en poids par rapport au poids total du mélange d'acides gras en C16-C20 d'huile de ricin.For the purposes of the present invention, the term "castor oil C 16 -C 20 fatty acids" means a mixture of fatty acids derived from castor oil comprising a saturated or unsaturated linear hydrocarbon-based chain, comprising 16 to 20 carbon atoms (including that of the terminal carboxylic acid function). These fatty acids therefore do not include ricinoleic acid which can not be considered as a fatty acid since it comprises a hydroxyl (OH) function on its side chain. They will also comprise mainly C 16 and C 18 fatty acids (at least 80%, preferably at least 90%, and more preferably at least 95% by weight relative to the fatty acid mixture). C 18 fatty acids will include more particularly stearic acid, oleic acid, linoleic acid and linolenic acid, and C 16 fatty acids will more particularly include palmitic acid. The C 18 fatty acids represent at least 70%, in particular at least 75%, and more particularly at least 80% by weight relative to the total weight of the castor oil C 16 -C 20 fatty acid mixture .

Les esters méthyliques d'acides gras en C18 représenteront au moins 70%, en particulier au moins 75%, et plus particulièrement au moins 80% en poids par rapport au poids total du mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin. En particulier, il s'agira d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin qui comprendra :

  • environ 11 % en poids d'ester méthylique d'acide stéarique,
  • environ 30% en poids d'ester méthylique d'acide oléique, et
  • environ 40% en poids d'ester méthylique d'acide linoléique.
Ce mélange pourra plus particulièrement être de l'Esterol® A commercialisé par la société Arkema (France).The methyl esters of C 18 fatty acids will represent at least 70%, in particular at least 75%, and more particularly at least 80% by weight relative to the total weight of the mixture of C 16 fatty acid methyl esters. -C 20 of castor oil. In particular, it will be a mixture of methyl esters of C 16 -C 20 fatty acids of castor oil which will comprise:
  • about 11% by weight of stearic acid methyl ester,
  • about 30% by weight of oleic acid methyl ester, and
  • about 40% by weight of linoleic acid methyl ester.
This mixture may more particularly be Esterol ® A marketed by Arkema (France).

Les glycérides éthoxylés selon l'invention répondront avantageusement à la formule (I) suivante :

Figure imgb0001
pour laquelle :

  • x, y et z représentent, indépendamment les uns des autres, un nombre entier compris entre 0 et 40 et dont la somme x + y + z est comprise entre 1 et 100, de préférence entre 10 et 40, et
  • R1, R2 et R3 représentent, indépendamment les uns des autres, un atome d'hydrogène ou un groupe -CO-A où A représente une chaîne hydrocarbonée linéaire, saturée ou insaturée, comprenant 5 à 25, avantageusement 10 à 20, atomes de carbone et étant éventuellement substituée par un groupe OH, au moins un des groupements R1, R2 et R3 ne représentant pas un atome d'hydrogène.
The ethoxylated glycerides according to the invention will advantageously meet the following formula (I):
Figure imgb0001
for which :
  • x, y and z represent, independently of one another, an integer between 0 and 40 and whose sum x + y + z is between 1 and 100, preferably between 10 and 40, and
  • R 1 , R 2 and R 3 represent, independently of each other, a hydrogen atom or a -CO-A group where A represents a linear hydrocarbon chain, saturated or unsaturated, comprising 5 to 25, advantageously 10 to 20, carbon atoms and being optionally substituted with an OH group, at least one of the groups R 1 , R 2 and R 3 not representing a hydrogen atom.

Il pourra s'agir plus particulièrement du glycereth-17 cocoate, commercialisé sous le nom Levenol® C-201 par la société KAO Corporation S.A. et distribué en France par Univar (correspondant à un composé de formule (I) pour lequel x + y + z = 17 et R1, R2 et R3 représentent des chaînes grasses issues de l'huile de coco ou un atome d'hydrogène), de l'huile de ricin éthoxylée, comprenant notamment 35 motifs éthoxylés, produit commercialisée sous le nom Dehscofix® CO125 (correspondant à un composé de formule (I) pour lequel x + y + z = 35 et R1, R2 et R3 représentent des chaînes grasses issues de l'huile de ricin), ou d'un mélange de ceux-ci.It may be more particularly glycereth-17 cocoate, marketed under the name Levenol ® C-201 by KAO Corporation SA and distributed in France by Univar (corresponding to a compound of formula (I) for which x + y + z = 17 and R 1 , R 2 and R 3 represent fatty chains derived from coconut oil or a hydrogen atom), ethoxylated castor oil, comprising in particular 35 ethoxylated units, product marketed under the name Dehscofix ® CO125 (corresponding to a compound of formula (I) for which x + y + z = 35 and R 1 , R 2 and R 3 represent fatty chains derived from castor oil), or a mixture of them.

Le glycéride éthoxylé sera de préférence d'origine végétale.The ethoxylated glyceride will preferably be of plant origin.

L'utilisation d'un tel glycéride éthoxylé dans la composition permet notamment le rinçage à l'eau de la surface dure nettoyée, ainsi que la formation d'une émulsion des esters d'acides gras d'huile de ricin avec de l'eau quand les esters d'acides gras d'huile de ricin sont utilisés dilués dans l'eau, notamment à hauteur de 20 - 30%.The use of such an ethoxylated glyceride in the composition allows in particular the rinsing with water of the cleaned hard surface, as well as the formation of an emulsion of castor oil fatty acid esters with water. when the fatty acid esters of castor oil are used diluted in water, in particular up to 20 - 30%.

Une composition comprenant une telle association peut être appliquée au pinceau, au chiffon, par pulvérisation (notamment sous pression), par aspersion ou encore par immersion, éventuellement en présence d'ultra-sons.A composition comprising such a combination may be applied by brush, cloth, spray (especially under pressure), by spraying or by immersion, optionally in the presence of ultrasound.

Elle peut être utilisée diluée dans l'eau et peut être utilisée avec ou sans rinçage à l'eau.It can be used diluted in water and can be used with or without rinsing with water.

Elle peut être également utilisée à froid comme à chaud, c'est-à-dire à une température comprise entre -5°C et 80°C.It can also be used cold or hot, that is to say at a temperature between -5 ° C and 80 ° C.

En particulier, elle permet de travailler à des pH neutres.In particular, it allows working at neutral pH.

Une association selon l'invention pourra être contenue en particulier dans une composition telle que définie ci-dessous dans le second objet de l'invention.An association according to the invention may be contained in particular in a composition as defined below in the second subject of the invention.

Une telle association pourra être utilisée dans une composition de traitement de surface, et en particulier dans une composition destinée au nettoyage et au dégraissage ou encore dans une composition dégrippante, pour tout type de surface dure, à base notamment de métal tel que le fer, de plastique, d'élastomère ou encore de caoutchouc, en particulier dans des installations industrielles (imprimeries, garages, entrepôts, ateliers de mécanique, usines, sites de forage pétrolier, etc.) ou des bâtiments de collectivités.Such an association may be used in a surface treatment composition, and in particular in a composition intended for cleaning and degreasing or in a penetrating composition, for any type of hard surface, particularly based on metal such as iron, plastic, elastomer or rubber, especially in industrial installations (printing works, garages, warehouses, mechanical workshops, factories, oil drilling sites, etc.) or community buildings.

Par « dégrippant » ou « composition dégrippante », on entend en particulier, au sens de la présente invention, une composition permettant de débloquer une pièce qui pourra être notamment corrodée. Une telle composition permet en particulier, dans le cadre de la présente invention, d'éliminer la rouille ou tout autre produit d'oxydation.By "penetrating" or "penetrating composition" is meant in particular, in the sense of the present invention, a composition for unlocking a part that may be particularly corroded. Such a composition makes it possible in particular within the scope of the present invention to eliminate rust or any other oxidation product.

Par « surface dure », on entend notamment, au sens de la présente invention, les sols, les murs, les châssis de machine, les moteurs (automobiles, motos, poids lourds, bateaux, etc.), les cuves à fuel ou encore les outils.For the purposes of the present invention, the term "hard surface" is understood to mean, for example, floors, walls, machine frames, engines (automobiles, motorcycles, trucks, boats, etc.), fuel tanks or even the tools.

Une telle association permet l'élimination des hydrocarbures légers tels que l'essence, le gasoil, le pétrole ou encore le kérosène, les goudrons tels que ceux provenant de résidus de combustion, les goudrons végétaux, les goudrons de Norvège ou encore les goudrons du Canada, les bitumes tels que le bitume de Judée, les peintures, les encres, les dérivés pétroliers, y compris le pétrole brut, les graisses, les huiles, le fioul lourd, la rouille ou tout autre produit d'oxydation, etc.Such an association allows the elimination of light hydrocarbons such as gasoline, gas oil, petroleum or kerosene, tars such as those from combustion residues, vegetable tars, Norway tars or tars. Canada, bitumen such as Judea bitumen, paints, inks, petroleum derivatives, including crude oil, fats, oils, heavy fuel oil, rust or any other oxidation product, etc.

Une telle association peut être utilisée seule ou additionnée d'un ou plusieurs additifs, notamment choisis parmi les solvants (en particulier d'origine végétale), les tensioactifs ioniques (notamment anioniques), d'autres tensioactifs non ioniques (tels que les esters et amides d'acides gras), d'autres agents nettoyants, les agents antigels, les colorants, les parfums, les conservateurs et les sels.Such an association can be used alone or added with one or more additives, especially chosen from solvents (in particular of plant origin), ionic surfactants (especially anionic surfactants), other nonionic surfactants (such as esters and fatty acid amides), other cleaning agents, antifreezes, dyes, fragrances, preservatives and salts.

Le solvant pourra être de l'eau et/ou du bioéthanol (solvant d'origine végétale). Le tensioactif anionique pourra être du lauryl éther sulfate de sodium. L'agent antigel pourra être du monopropylène de glycol, du laurate d'isopropyle ou un mélange de ceux-ci, ce qui permet de travailler à des températures plus basses. L'agent nettoyant pourra être du lactate d'éthyle.The solvent may be water and / or bioethanol (solvent of vegetable origin). The anionic surfactant may be sodium lauryl ether sulphate. The antifreeze agent may be glycol monopropylene, isopropyl laurate, or a mixture thereof, which enables work at lower temperatures. The cleaning agent may be ethyl lactate.

Par « acide gras », on entend, au sens de la présente invention, un composé de formule R-COOH comprenant 6 à 22 atomes, de préférence 10 à 20, de carbone, où R représente une chaîne hydrocarbonée linéaire, saturée ou insaturée (R comprenant donc 5 à 21, de préférence 9 à 19, atomes de carbone).For the purposes of the present invention, the term "fatty acid" is intended to mean a compound of formula R-COOH comprising 6 to 22 carbon atoms, preferably 10 to 20 carbon atoms, in which R represents a linear, saturated or unsaturated hydrocarbon chain ( R thus comprising 5 to 21, preferably 9 to 19, carbon atoms).

Par « ester d'acide gras », on entend, au sens de la présente invention, un composé de formule R-COO-Ra, où R est tel que défini ci-dessus et Ra est un groupe alkyle en C1 à C6 tel que défini précédemment, et en particulier est l'isopropyle. Il pourra s'agir en particulier du laurate d'isopropyle, produit ayant également des propriétés d'antigel.For the purposes of the present invention, the term "fatty acid ester" is intended to mean a compound of formula R-COO-R a , where R is as defined above and R a is a C 1 -C 4 alkyl group. C 6 as defined above, and in particular is isopropyl. It may be in particular isopropyl laurate, product also having antifreeze properties.

Par « amide d'acide gras », on entend, au sens de la présente invention, un composé de formule R-CO-NRbRc, où R est tel que défini ci-dessus et Rb et Rc représentent, indépendamment l'un de l'autre, un groupe alkyle en C1 à C6 tel que défini précédemment, éventuellement substitué par un groupe OH ; et notamment un groupe CH2CH2OH. Il pourra s'agir en particulier d'un mélange d'amides d'acides gras tel que le diéthanolamide de coprah.For the purposes of the present invention, the term "fatty acid amide" means a compound of formula R-CO-NR b R c , where R is as defined above and R b and R c represent, independently from each other, a C 1 to C 6 alkyl group as defined above, optionally substituted with an OH group; and in particular a CH 2 CH 2 OH group. It may be in particular a mixture of fatty acid amides such as coconut diethanolamide.

Selon un premier aspect, l'association est utilisée dans une composition utilisées pour des gros travaux, pour nettoyer et dégraisser des surfaces dures très sales et/ou très grasses comme des moteurs, des outils, des cuves à fuel, etc. ou encore dans une composition dégrippante.According to a first aspect, the combination is used in a composition used for heavy work, for cleaning and degreasing very dirty and / or very greasy hard surfaces such as engines, tools, fuel tanks, etc. or in a penetrating composition.

Dans ce cas, le mélange d'esters d'acides gras d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin, représentera au moins 60%, de préférence au moins 70%, et notamment entre 70% et 99% en poids du poids total de la composition.In this case, the mixture of castor oil fatty acid esters, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, will represent at least 60%, preferably at least 70%, and especially between 70% and 99% by weight of the total weight of the composition.

Le glycéride éthoxylé représentera avantageusement 1 à 15%, de préférence 1 à 10% en poids du poids total de la composition.The ethoxylated glyceride will advantageously represent 1 to 15%, preferably 1 to 10% by weight of the total weight of the composition.

De préférence, le glycéride éthoxylé sera utilisé dans un rapport en poids glycéride éthoxylé sur esters d'acides gras d'huile de ricin compris entre 0,1% et 20%, avantageusement entre 3% et 15%.Preferably, the ethoxylated glyceride will be used in an ethoxylated glyceride weight ratio on castor oil fatty acid esters of between 0.1% and 20%, advantageously between 3% and 15%.

En particulier, la composition pourra comprendre en outre un solvant d'origine végétale tel que le bioéthanol, afin d'augmenter le pouvoir solvant des esters d'acides gras d'huile de ricin et/ou un tensioactif non ionique tel qu'un amide d'acide gras comme le diéthanolamide de coprah et/ou un autre agent nettoyant tel que le lactate d'éthyle.In particular, the composition may also comprise a solvent of plant origin such as bioethanol, in order to increase the solvent power of castor oil fatty acid esters and / or a nonionic surfactant such as an amide fatty acid such as coconut diethanolamide and / or other cleaning agent such as ethyl lactate.

Selon un second aspect, la composition est utilisée pour nettoyer et dégraisser, et en particulier à pH neutre, des surfaces dures peu sales et/ou peu grasses (c'est-à-dire pour un nettoyage régulier) notamment de murs, de sols, de châssis de machines, etc.According to a second aspect, the composition is used for cleaning and degreasing, and in particular at neutral pH, hard, lightly soiled and / or low-fat surfaces (that is to say for regular cleaning), in particular walls, floors , machine chassis, etc.

Dans ce cas, le mélange d'esters d'acides gras d'huile de ricin représentera de 1% à 10%, avantageusement de 2% à 5%, en poids du poids total des composants de la composition autres que l'eau.In this case, the mixture of castor oil fatty acid esters will be from 1% to 10%, preferably from 2% to 5%, by weight of the total weight of the components of the composition other than water.

Le glycéride éthoxylé représentera avantageusement 10 à 75%, de préférence 30 à 60% en poids du poids total des composants de la composition autres que l'eau.The ethoxylated glyceride will advantageously represent 10 to 75%, preferably 30 to 60% by weight of the total weight of the components of the composition other than water.

De plus, la composition sera utilisée sous une forme diluée dans l'eau (la formulation diluée contenant alors de 0,1% à 5%, de préférence de 0,5% à 2% en poids de composants autres que l'eau, par rapport au poids total de la formulation diluée).In addition, the composition will be used in a form diluted in water (the diluted formulation then containing from 0.1% to 5%, preferably from 0.5% to 2% by weight of components other than water, relative to the total weight of the diluted formulation).

Selon un mode de réalisation particulier de l'invention, la composition comprendra au moins un solvant d'origine végétale tel que le bioéthanol et/ou au moins un tensioactif anionique tel que le lauryl éther sulfate de sodium et/ou au moins un agent antigel tel que le monopropylene glycol ou le laurate d'isopropyle.According to one particular embodiment of the invention, the composition will comprise at least one solvent of plant origin such as bioethanol and / or at least one anionic surfactant such as sodium lauryl ether sulphate and / or at least one antifreeze agent. such as monopropylene glycol or isopropyl laurate.

La présente invention a également pour second objet une composition comprenant :

  • un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin,
  • au moins un glycéride éthoxylé, et
  • éventuellement au moins un additif choisi parmi les solvants (en particulier d'origine végétale), les tensioactifs ioniques (notamment anioniques), d'autres tensioactifs non ioniques, les agents antigels, d'autres composés nettoyant.
The present invention also has as a second object a composition comprising:
  • a mixture of methyl esters of C 16 -C 20 fatty acids of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 fatty acid mixture; C 20 castor oil,
  • at least one ethoxylated glyceride, and
  • optionally at least one additive chosen from solvents (in particular of vegetable origin), ionic surfactants (especially anionic surfactants), other nonionic surfactants, antifreezes, other cleaning compounds.

Cette composition sera plus particulièrement une composition de traitement de surface dure telle que définie ci-dessus, et en particulier une composition destinée au nettoyage et au dégraissage de surface dure ou encore une composition dégrippante.This composition will more particularly be a hard surface treatment composition as defined above, and in particular a composition intended to cleaning and degreasing of hard surface or a penetrating composition.

La surface dure pourra être à base de métal tel que le fer, de plastique, d'élastomère ou encore de caoutchouc, en particulier dans des installations industrielles (imprimeries, garages, entrepôts, ateliers de mécanique, usines, sites de forage pétrolier, etc.) ou des bâtiments de collectivités.The hard surface may be based on metal such as iron, plastic, elastomer or rubber, especially in industrial facilities (printing plants, garages, warehouses, mechanical workshops, factories, oil drilling sites, etc. .) or community buildings.

Cette composition a en particulier un pH neutre.This composition has in particular a neutral pH.

Les acides gras issus de l'huile de ricin seront tels que définis précédemment. Les esters méthyliques d'acides gras en C18 représenteront au moins 70%, en particulier au moins 75%, et plus particulièrement au moins 80% en poids par rapport au poids total du mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin. En particulier, il s'agira d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin qui comprendra :

  • environ 11 % en poids d'ester méthylique d'acide stéarique,
  • environ 30% en poids d'ester méthylique d'acide oléique, et
  • environ 40% en poids d'ester méthylique d'acide linoléique.
Ce mélange pourra plus particulièrement être de l'Esterol® A commercialisé par la société Arkema (France).The fatty acids derived from castor oil will be as defined above. The methyl esters of C 18 fatty acids will represent at least 70%, in particular at least 75%, and more particularly at least 80% by weight relative to the total weight of the mixture of C 16 fatty acid methyl esters. -C 20 of castor oil. In particular, it will be a mixture of methyl esters of C 16 -C 20 fatty acids of castor oil which will comprise:
  • about 11% by weight of stearic acid methyl ester,
  • about 30% by weight of oleic acid methyl ester, and
  • about 40% by weight of linoleic acid methyl ester.
This mixture may more particularly be Esterol ® A marketed by Arkema (France).

Le glycéride éthoxylé répondra avantageusement à la formule (I) précédente. Il sera de préférence d'origine végétale. Il pourra s'agir du glycereth-17 cocoate, d'huile de ricin éthoxylée (comprenant notamment 35 motifs éthoxyles), ou d'un mélange de ceux-ci.The ethoxylated glyceride will advantageously meet the formula (I) above. It will preferably be of plant origin. It may be glycereth-17 cocoate, ethoxylated castor oil (comprising in particular ethoxyl units), or a mixture thereof.

Le solvant pourra être de l'eau et/ou du bioéthanol (solvant d'origine végétale). Le tensioactif anionique pourra être du lauryl éther sulfate de sodium. Le tensioactif non ionique pourra être un ester d'acide gras tel que le laurate d'isopropyle, un amide d'acide gras tel que le diéthanolamide de coprah, ou un mélange de ceux-ci. L'agent antigel pourra être du monopropylène de glycol, de le laurate d'isopropyle ou un mélange de ceux-ci. L'agent nettoyant pourra être du lactate d'éthyle.The solvent may be water and / or bioethanol (solvent of vegetable origin). The anionic surfactant may be sodium lauryl ether sulphate. The nonionic surfactant may be a fatty acid ester such as isopropyl laurate, a fatty acid amide such as coconut diethanolamide, or a mixture thereof. The antifreeze agent may be monopropylene glycol, isopropyl laurate or a mixture thereof. The cleaning agent may be ethyl lactate.

La composition pourra comprendre également au moins un additif choisi parmi les colorants, les parfums, les conservateurs et les sels, ou tout autre additif utilisé classiquement dans une telle composition.The composition may also comprise at least one additive chosen from dyes, perfumes, preservatives and salts, or any other additive conventionally used in such a composition.

Selon un premier aspect, la composition sera plus particulièrement destinée à des gros travaux, pour nettoyer et dégraisser des surfaces dures très sales et/ou très grasses comme des moteurs, des outils, des cuves à fuel, etc. ou encore une composition dégrippante.According to a first aspect, the composition will be more particularly intended for heavy work, for cleaning and degreasing very dirty and / or very greasy hard surfaces such as engines, tools, fuel tanks, etc. or a penetrating composition.

De manière avantageuse, le mélange d'esters d'acides gras d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin, représentera au moins 60%, de préférence au moins 70%, notamment de 70 à 99% en poids du poids total de la compositionAdvantageously, the mixture of castor oil fatty acid esters, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, will represent at least 60%, preferably at least 70%, especially 70 to 99% by weight of the total weight of the composition

Le glycéride éthoxylé représentera avantageusement dans ce cas 1 à 15%, de préférence 1 à 10% en poids du poids total de la composition.The ethoxylated glyceride will advantageously represent in this case 1 to 15%, preferably 1 to 10% by weight of the total weight of the composition.

De préférence, le glycéride éthoxylé sera utilisé dans un rapport en poids glycéride éthoxylé sur esters d'acides gras d'huile de ricin compris entre 0,1% et 20%, avantageusement entre 3% et 15%.Preferably, the ethoxylated glyceride will be used in an ethoxylated glyceride weight ratio on castor oil fatty acid esters of between 0.1% and 20%, advantageously between 3% and 15%.

De manière avantageuse, la composition sera constituée par :

  • un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin,
  • au moins un tensioactif non ionique émulsionnant, de préférence d'origine végétale, tel qu'un tensioactif de formule (I) telle que définie précédemment, et en particulier le glycereth-17 cocoate et/ou de l'huile de ricin éthoxylée, et
  • éventuellement au moins un additif choisi parmi les solvants (en particulier d'origine végétale), les tensioactifs ioniques (notamment anioniques), d'autres tensioactifs non ioniques tel qu'un ester ou un amide d'acide gras, les agents antigels, d'autres composés nettoyant, les colorants, les parfums, les conservateurs et les sels.
Advantageously, the composition will consist of:
  • a mixture of methyl esters of C 16 -C 20 fatty acids of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 fatty acid mixture; C 20 castor oil,
  • at least one emulsifying nonionic surfactant, preferably of plant origin, such as a surfactant of formula (I) as defined above, and in particular glycereth-17 cocoate and / or ethoxylated castor oil, and
  • optionally at least one additive chosen from solvents (in particular of vegetable origin), ionic surfactants (in particular anionic surfactants), other nonionic surfactants such as an ester or a fatty acid amide, antifreezing agents, other cleaning compounds, dyes, perfumes, preservatives and salts.

Selon un mode de réalisation particulier de l'invention, la composition comprendra, par rapport au poids total de la composition :

  • 50 à 99%, avantageusement 60 à 99%, de préférence 70 à 99%, en poids d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin, et
  • 1 à 15%, de préférence 1 à 10%, en poids d'au moins un tensioactif non ionique émulsionnant, de préférence d'origine végétale, tel qu'un tensioactif de formule (I) telle que définie précédemment, et en particulier le glycereth-17 cocoate et/ou de l'huile de ricin éthoxylée, et
  • 0 à 35%, de préférence 0 à 25%, en poids d'au moins un additif, notamment choisi parmi les solvants (en particulier d'origine végétale), les tensioactifs ioniques (notamment anioniques), d'autres tensioactifs non ioniques tel qu'un ester ou un amide d'acide gras, les agents antigels, d'autres composés nettoyant, les colorants, les parfums, les conservateurs et les sels.
According to one particular embodiment of the invention, the composition will comprise, relative to the total weight of the composition:
  • 50 to 99%, advantageously 60 to 99%, preferably 70 to 99%, by weight of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the fatty acids in C 18 represents at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil, and
  • 1 to 15%, preferably 1 to 10%, by weight of at least one emulsifying nonionic surfactant, preferably of vegetable origin, such as a surfactant of formula (I) as defined above, and in particular the glycereth-17 cocoate and / or ethoxylated castor oil, and
  • 0 to 35%, preferably 0 to 25%, by weight of at least one additive, especially chosen from solvents (in particular of plant origin), ionic surfactants (especially anionic surfactants), other nonionic surfactants such as an ester or a fatty acid amide, antifreezes, other cleaning compounds, dyes, perfumes, preservatives and salts.

Une telle composition pourra notamment être l'une des compositions 1 à 3 suivantes :

  • composition 1 constituée, par rapport au poids total de la composition, par :
    • 97% en poids d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin, et
    • 3% en poids de glycereth-17 cocoate,
      un colorant pouvant être ajouté à une telle composition,
  • composition 2 constituée, par rapport au poids total de la composition, par :
    • 73,5% en poids d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin,
    • 6% en poids de diéthanolamide de coprah,
    • 7% en poids d'huile de ricin éthoxylée comprenant notamment 35 motifs éthoxyles (-CH2CH2O-),
    • 10% en poids d'eau, et
    • 3,5% en poids de bioéthanol, et
  • composition 3 constituée, par rapport au poids total de la composition, par :
    • 88% en poids d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin,
    • 4% en poids de lactate d'éthyle,
    • 4% en poids d'huile de ricin éthoxylée comprenant notamment 35 motifs éthoxyles,
    • 1 % en poids de glycereth-17 cocoate,
    • 2% en poids d'eau, et
    • 1 % de diéthanolamide de coprah,
un colorant pouvant être ajouté à une telle composition.Such a composition may especially be one of the following compositions 1 to 3:
  • composition 1 constituted, relative to the total weight of the composition, by:
    • 97% by weight of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the mixture of C 16 -C 20 fatty acids of castor oil, and
    • 3% by weight of glycereth-17 cocoate,
      a dye that can be added to such a composition,
  • composition 2 constituted, relative to the total weight of the composition, by:
    • 73.5% by weight of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the mixture of C 16 -C 20 fatty acids of castor oil,
    • 6% by weight of coconut diethanolamide,
    • 7% by weight of ethoxylated castor oil comprising in particular 35 ethoxyl units (-CH 2 CH 2 O-),
    • 10% by weight of water, and
    • 3.5% by weight of bioethanol, and
  • Composition comprising, relative to the total weight of the composition, by:
    • 88% by weight of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the mixture of C 16 -C 20 fatty acids of castor oil,
    • 4% by weight of ethyl lactate,
    • 4% by weight of ethoxylated castor oil comprising in particular 35 ethoxyl units,
    • 1% by weight of glycereth-17 cocoate,
    • 2% by weight of water, and
    • 1% coconut diethanolamide,
a dye that can be added to such a composition.

Selon un second aspect, la composition est plus particulièrement destinée au nettoyage et au dégraissage des surfaces dures peu sales et/ou peu grasses (c'est-à-dire pour un nettoyage régulier) notamment de murs, de sols, de châssis de machines, etc.According to a second aspect, the composition is more particularly intended for the cleaning and degreasing of hard surfaces that are lightly soiled and / or not very greasy (that is for a regular cleaning), in particular walls, floors, machine frames. etc.

Le mélange d'esters d'acides gras d'huile de ricin représentera avantageusement de 1% à 10%, de préférence de 2% à 5%, en poids du poids total des composants de la composition autres que l'eau.The mixture of castor oil fatty acid esters will preferably be from 1% to 10%, preferably from 2% to 5%, by weight of the total weight of the components of the composition other than water.

Le glycéride éthoxylé représentera avantageusement 10 à 75%, de préférence 30 à 60%, en poids du poids total des composants de la composition autres que l'eau.The ethoxylated glyceride will advantageously represent 10 to 75%, preferably 30 to 60%, by weight of the total weight of the components of the composition other than water.

De manière avantageuse, la composition comprendra en outre au moins un tensioactif anionique tel que le lauryl éther sulfate de sodium et/ou au moins un solvant d'origine végétale tel que le bioéthanol et/ou au moins un agent antigel tel que le monopropylene glycol ou le laurate d'isopropyle.Advantageously, the composition will also comprise at least one anionic surfactant such as sodium lauryl ether sulphate and / or at least one solvent of plant origin such as bioethanol and / or at least one anti-freeze agent such as monopropylene glycol. or isopropyl laurate.

La composition pourra être formulée sous une forme concentrée, à diluer dans l'eau avant utilisation, notamment à hauteur de 2 à 20% (la formulation diluée contenant alors de 0,1% à 5%, de préférence de 0,5% à 2% en poids de composants autres que l'eau, par rapport au poids total de la formulation diluée). Une telle formulation concentrée pourra comprendre notamment de 60 à 80%, de préférence environ 75%, en poids d'eau par rapport au poids totale de la composition.The composition may be formulated in a concentrated form, to be diluted in water before use, especially at a level of 2 to 20% (the diluted formulation then containing from 0.1% to 5%, preferably from 0.5% to 2% by weight of components other than water, relative to the total weight of the diluted formulation). Such a concentrated formulation may comprise in particular from 60 to 80%, preferably about 75%, by weight of water relative to the total weight of the composition.

Selon un mode de réalisation particulier de l'invention, la composition comprendra, par rapport au poids des composants autre que l'eau de la composition :

  • 1 à 10%, de préférence 2 à 5% en poids d'un mélange d'esters méthyliques d'acides gras en C16-C20 d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin,
  • 30 à 75%, de préférence 30 à 60% en poids, d'au moins un tensioactif non ionique émulsionnant, de préférence d'origine végétale, tel qu'un tensioactif de formule (I) telle que définie précédemment, et en particulier le glycereth-17 cocoate et/ou de l'huile de ricin éthoxylée, et
  • 20 à 60%, de préférence 30 à 50% en poids d'au moins un additif, notamment choisi parmi les solvants en particulier d'origine végétale, les tensioactifs ioniques (notamment anioniques), d'autres tensioactifs non ioniques tel qu'un ester ou un amide d'acide gras, les agents antigels, d'autres composés nettoyant, les colorants, les parfums, les conservateurs et les sels.
According to a particular embodiment of the invention, the composition will comprise, relative to the weight of the components other than the water of the composition:
  • 1 to 10%, preferably 2 to 5% by weight, of a mixture of C 16 -C 20 fatty acid methyl esters of castor oil, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C 16 -C 20 fatty acid mixture of castor oil,
  • 30 to 75%, preferably 30 to 60% by weight, of at least one emulsifying nonionic surfactant, preferably of plant origin, such as a surfactant of formula (I) as defined above, and in particular the glycereth-17 cocoate and / or ethoxylated castor oil, and
  • 20 to 60%, preferably 30 to 50% by weight of at least one additive, especially chosen from solvents, in particular of plant origin, ionic surfactants (especially anionic surfactants), other nonionic surfactants such as ester or a fatty acid amide, antifreezes, other cleaning compounds, dyes, perfumes, preservatives and salts.

En particulier, la composition pourra être constituée, par rapport au poids total de la composition, par :

  • 74,8% en poids d'eau,
  • 3,8% en poids de lauryl éther sulfate de sodium,
  • 14,15% en poids de glycereth-17 cocoate,
  • 0,3% en poids de parfums,
  • 5% en poids de bioéthanol,
  • 1% en poids de mono propylène glycol, et
  • 0,95% en poids d'un mélange d'esters méthyliques d'acides gras d'huile de ricin, pour lequel les acides gras en C18 représentent au moins 70% en poids du poids total du mélange d'acides gras en C16-C20 d'huile de ricin,
un colorant pouvant être ajouté à une telle composition.In particular, the composition may consist, relative to the total weight of the composition, by:
  • 74.8% by weight of water,
  • 3.8% by weight of sodium lauryl ether sulphate,
  • 14.15% by weight of glycereth-17 cocoate,
  • 0.3% by weight of perfumes,
  • 5% by weight of bioethanol,
  • 1% by weight of mono propylene glycol, and
  • 0.95% by weight of a mixture of methyl esters of castor oil fatty acids, for which the C 18 fatty acids represent at least 70% by weight of the total weight of the C fatty acid mixture 16 -C 20 castor oil,
a dye that can be added to such a composition.

La présente invention sera mieux comprise à la lumière des exemples non limitatifs qui suivent.The present invention will be better understood in the light of the nonlimiting examples which follow.

EXEMPLESEXAMPLES EXEMPLE 1 : Compositions selon l'inventionEXAMPLE 1 Compositions According to the Invention

Les compositions C1 à C4 selon l'invention décrites dans les tableaux suivants ont été préparées. Elles sont plus adaptées pour de gros pour des gros travaux, pour nettoyer et dégraisser des surfaces dures très sales et/ou très grasses comme des moteurs, des outils, des cuves à fuel, etc. ou encore comme dégrippant (composition C1). Composants Quantités (en kg) C1 C2 C3 C4 Mélange d'esters méthyliques d'acides gras d'huile de ricin (Estérol® A) 970 970 735 880 Glycereth-17 cocoate (Levenol® C-201) 30 30 - 10 Huile de ricin éthoxylée avec 35 motifs éthoxyles (Descofix® CO125) - - 70 40 Colorant - 0,008 - 0,008 Diéthanolamide de coprah (Amidet® B112) - - 60 10 Bioéthanol - - 35 - Eau - - 100 20 Lactate d'éthyle - - - 40 The compositions C1 to C4 according to the invention described in the following tables were prepared. They are more suitable for wholesale for heavy work, for cleaning and degreasing very dirty and / or very greasy hard surfaces such as engines, tools, fuel tanks, etc. or as a releasing agent (composition C1). components Quantities (in kg) C1 C2 C3 C4 Mixture of methyl esters of castor oil fatty acids (Estérol ® A) 970 970 735 880 Glycereth-17 cocoate (Levenol ® C-201) 30 30 - 10 Castor oil ethoxylated with 35 ethoxyl units (Descofix ® CO125) - - 70 40 Dye - 0,008 - 0,008 Coconut diethanolamide (Amidet ® B112) - - 60 10 bioethanol - - 35 - Water - - 100 20 Ethyl lactate - - - 40

La composition C5 selon l'invention décrite dans le tableau suivant a été préparée. Elle est plus adaptée pour un nettoyage de surfaces dures peu sales et/ou peu grasses. Elle sera avantageusement utilisée sous une forme diluée dans l'eau de 2 à 5%, voire jusqu'à 20% pour des taches plus difficiles à nettoyer. Composants Quantités (en kg) Eau 748 Lauryl éther sulfate de sodium 38 Glycereth-17 cocoate (Levenol® C-201) 141,5 Parfums 3 Bioéthanol 50 Mono propylène glycol 10 Mélange d'esters méthyliques d'acides gras d'huile de ricin (Estérol® A) 9,5 Colorant 0,0025 The composition C5 according to the invention described in the following table was prepared. It is more suitable for cleaning hard and slightly greasy hard surfaces. It will advantageously be used in a diluted form in water of 2 to 5%, or even up to 20% for stains that are more difficult to clean. components Quantities (in kg) Water 748 Lauryl ether sodium sulphate 38 Glycereth-17 cocoate (Levenol ® C-201) 141.5 Perfume 3 bioethanol 50 Mono propylene glycol 10 Mixture of methyl esters of castor oil fatty acids (Estérol ® A) 9.5 Dye 0.0025

EXEMPLE 2 : Compositions utilisées dans les exemples comparatifs 3 à 7EXAMPLE 2 Compositions Used in Comparative Examples 3 to 7

Les trois formulations A à C à base d'un mélange d'esters méthyliques d'acides gras d'huile de ricin ont été préparées. Les pourcentages sont donnés en poids par rapport au poids total de la formulation. Composants A* B* C Mélange d'esters méthyliques d'acides gras d'huile de ricin (Estérol® A) 100% 80% 97% Bioéthanol - 20% - Glycereth-17 cocoate (Levenol® C-201) - - 3% * Les formulations A et B ne font pas partie de la présente invention The three formulations A to C based on a mixture of methyl esters of castor oil fatty acids were prepared. The percentages are given by weight relative to the total weight of the formulation. components AT* B * VS Mixture of methyl esters of castor oil fatty acids (Estérol ® A) 100% 80% 97% bioethanol - 20% - Glycereth-17 cocoate (Levenol ® C-201) - - 3% * Formulations A and B are not part of the present invention

Les compositions A, B et C ont alors été testées en comparaison avec des compositions de l'art antérieur à base d'huile de tournesol :

  • ■ Composition X constituée d'huile de tournesol pure, et
  • ■ Composition Y : composition émulsionnable à base d'huile de tournesol (commercialisée sous le nom Neutralène® 2006E par la société TEC Industrie).
The compositions A, B and C were then tested in comparison with compositions of the prior art based on sunflower oil:
  • ■ Composition X consisting of pure sunflower oil, and
  • ■ Composition Y: an emulsifiable composition based on sunflower oil (marketed under the name Neutralène ® 2006 E by TEC Industrie).

EXEMPLE 3 : Efficacité du dégraissageEXAMPLE 3 Effectiveness of Degreasing

Sur des plaques de verre blanc, sont appliquées en couche épaisse de 0,5 à 2 mm d'épaisseur :

  • ■ de l'huile semi-synthétique commercialisée sous le nom Perfo 10 W 40 par la société Lubro,
  • ■ de la graisse au bisulfure de molybdène 104 commercialisée par la société Lubro, et
  • ■ une émulsion liquide de bitume solvanté commercialisée sous le nom Blacksol® par la société Technique-Béton.
On white glass plates, are applied in a thick layer of 0.5 to 2 mm thick:
  • ■ semi-synthetic oil marketed under the name Perfo 10 W 40 by Lubro,
  • Molybdenum disulfide grease 104 sold by the company Lubro, and
  • ■ Solvent a bitumen liquid emulsion marketed under the name Blacksol ® by the company Technical-Concrete.

Les compositions A, B, C, X et Y ont alors été appliquées par pulvérisation, les compositions A, B et X étant utilisés pures tandis que les compositions émulsionnables C et Y étant utilisées sous forme diluées dans l'eau à 30%.Compositions A, B, C, X and Y were then applied by spraying, compositions A, B and X being used pure while emulsifiable compositions C and Y being used in diluted form in water at 30%.

Après 5 à 10 min, la surface du verre est essuyée avec un papier d'essuyage ouaté, puis avec un papier d'essuyage imbibé de la composition dans le cas du bitume.After 5 to 10 minutes, the surface of the glass is wiped with a wiped wiping paper, then with a wiping paper impregnated with the composition in the case of bitumen.

L'aspect de la surface du verre a alors été observé juste après l'étape d'essuyage (T0) puis après 5 minutes (T5).The appearance of the glass surface was then observed just after the wiping step (T0) and then after 5 minutes (T5).

Dans le cas des compositions émulsionnables C et Y, la surface du verre a alors été rincée à l'eau puis séchée au papier d'essuyage.In the case of emulsifiable compositions C and Y, the surface of the glass was then rinsed with water and then dried with wiping paper.

L'aspect de la surface du verre a alors été observé (TR).The appearance of the glass surface was then observed (TR).

Les résultats observés sont décrits dans le tableau suivant :

Figure imgb0002
Figure imgb0003
The observed results are described in the following table:
Figure imgb0002
Figure imgb0003

Les compositions A et X, et C et Y ont été comparées entre elles du fait de leur similitude de formulation. On constate ainsi que les compositions à base d'un mélange d'esters d'acides gras d'huile de ricin ont un meilleur pouvoir dégraissant que les compositions à base d'huile de tournesol.Compositions A and X, and C and Y were compared with one another because of their similarity of formulation. It is thus found that the compositions based on a mixture of castor oil fatty acid esters have a better degreasing power than the compositions based on sunflower oil.

EXEMPLE 4 : Action anti-corrosionEXAMPLE 4: Anti-corrosion action

Trois plaques d'acier de 5 x 10 cm ont été plongées chacune directement dans la composition A, B ou X utilisée pure, puis égouttées. Une quatrième plaque d'acier n'a été plongée dans aucune composition afin de servir de témoin.Three 5 x 10 cm steel plates were each dipped directly into the pure composition A, B or X and then drained. A fourth steel plate was not immersed in any composition to serve as a control.

Les plaques ont ensuite été immergées dans une solution d'acide sulfurique à 0,5% pendant 24h.The plates were then immersed in a 0.5% sulfuric acid solution for 24 hours.

Une fois sorties de la solution acide, les plaques ont été laissées à sécher à l'air libre à température ambiante pendant 1 heure.Once removed from the acidic solution, the plates were allowed to air dry at room temperature for 1 hour.

Les inventeurs ont alors pu faire les observations suivantes :

  • ■ Un dégagement gazeux est observé à la surface de la plaque d'acier dès l'immersion de celle-ci dans la solution acide pour la plaque témoin, après 30 minutes pour la plaque ayant été plongée dans la composition B et après 1 heure pour les plaques ayant été plongées dans la composition A ou X.
  • ■ Concernant le degré d'oxydation, la plaque témoin est complètement oxydée (formation d'oxyde de fer III de couleur rouge orangé), la plaque ayant été plongée dans la composition X est très oxydée mais a été partiellement protégée comparativement à la plaque témoin, et les plaques ayant été plongées dans les compositions A et B sont peu oxydées, seules des piqûres d'oxydations espacées et peu nombreuses étant observées.
The inventors were then able to make the following observations:
  • ■ Gaseous evolution is observed on the surface of the steel plate as soon as it is immersed in the acid solution for the control plate, after 30 minutes for the plate having been immersed in the composition B and after 1 hour for the plates having been immersed in composition A or X.
  • With regard to the degree of oxidation, the control plate is completely oxidized (formation of iron oxide III orange-red), the plate having been immersed in the composition X is highly oxidized but has been partially protected compared to the control plate , and the plates having been immersed in the compositions A and B are little oxidized, only spaced and few oxidation pits being observed.

On constate ainsi que la présence d'un mélange d'esters d'acides gras d'huile de ricin apporte une meilleure protection anti-corrosion que l'huile de tournesol.It is thus found that the presence of a mixture of castor oil fatty acid esters provides a better anti-corrosion protection than sunflower oil.

EXEMPLE 5 : Stabilité de préparations émulsionnéesEXAMPLE 5 Stability of Emulsified Preparations

Les compostions C et Y ont été diluées à 30% avec de l'eau et mélangées pour former une émulsion. Les compositions ont alors été laissées au repos.Compositions C and Y were diluted 30% with water and mixed to form an emulsion. The compositions were then left to stand.

On constate alors que la composition X émulsionnée commence à déphaser après 15 minutes et est complètement séparée en deux phases après 1 heure.It is then found that the emulsified composition X begins to shift after 15 minutes and is completely separated into two phases after 1 hour.

Au contraire, la composition C émulsionnée commence à déphaser après 30 minutes et n'est toujours pas séparée en deux phases après 1 semaine.On the other hand, the emulsified composition C starts to shift out after 30 minutes and is still not separated into two phases after 1 week.

EXEMPLE 6 : Dissolution d'une peinture glycérophtaliqueEXAMPLE 6 Dissolution of a Glycerophthalic Paint

Une peinture glycérophtalique a été déposée sur une plaque de verre et laissée sécher pendant 24h.A glycerophthalic paint was deposited on a glass plate and allowed to dry for 24 hours.

Plusieurs spots de 5 gouttes de chaque composition A ou X ont alors été déposées sur la plaque de verre à intervalles réguliers. Toutes les minutes, un spot de chaque composition (A et X) a été essuyé avec un chiffon de manière à voir si la peinture avait été solubilisée à l'endroit de l'application de la composition.Several spots of 5 drops of each composition A or X were then deposited on the glass plate at regular intervals. Every minute, a spot of each composition (A and X) was wiped with a cloth so as to see if the paint had been solubilized at the location of the application of the composition.

On observe alors que la peinture est totalement solubilisée après 5 minutes avec la composition A alors qu'elle n'est solubilisée qu'après 11 minutes avec la composition X.It is then observed that the paint is completely solubilized after 5 minutes with the composition A whereas it is solubilized only after 11 minutes with the composition X.

EXEMPLE 7 : Aspect de surface après applicationEXAMPLE 7 Surface Appearance after Application

Une surface en plastique moulé granuleux est frottée en aller-retour sur une aire d'environ 10 x 30 cm avec un papier d'essuyage imbibé de la composition A, B ou X. On laisse au repos pendant 30 minutes avant d'observer la surface.A granular molded plastic surface is rubbed back and forth over an area of about 10 x 30 cm with a wiping paper soaked in composition A, B or X. It is allowed to stand for 30 minutes before observing. area.

On constate que la composition à base d'huile de tournesol a laissé un film brillant et gras, tandis que la composition à base d'un mélange d'esters d'acides gras d'huile de ricin a laissé un film satiné, sec et non gras.It is found that the sunflower oil-based composition left a glossy and greasy film, while the composition based on a mixture of castor oil fatty acid esters left a satin film, dry and not fat.

La nature grasse ou non grasse du film a été contrôlée en appliquant un papier sur la surface en plastique et en observant la formation ou non d'une tâche grasse bien reconnaissable sur le papier.The oily or non-greasy nature of the film was controlled by applying paper to the plastic surface and observing the formation or otherwise of a recognizable greasy work on the paper.

Claims (15)

  1. Composition comprising:
    - a castor oil C16-C20 fatty acid methyl ester mixture, wherein C18 fatty acids represent at least 70% by weight of the total weight of the castor oil C16-C20 fatty acid mixture,
    - at least one ethoxylated glyceride,
    - optionally at least one additive chosen from solvents particularly of vegetable origin, ionic surfactants, further non-ionic surfactants, antifreeze agents, and further cleaning agents, and
    - optionally at least one additive chosen from colorants, fragrances, preservatives, and salts.
  2. Composition according to claim 1, characterised in that said composition is a composition for treating hard surfaces, and in particular a composition intended for cleaning and degreasing hard surfaces or an anti-seize composition.
  3. Composition according to any one of claims 1 and 2, characterised in that it has a neutral pH.
  4. Composition according to any one of claims 1 to 3, characterised in that the castor oil C16-C20 fatty acid methyl ester mixture is a castor oil C16-C20 fatty acid methyl ester mixture, comprising:
    - approximately 11% by weight of stearic acid methyl ester,
    - approximately 30% by weight of oleic acid methyl ester, and
    - approximately 40% by weight of linoleic acid methyl ester.
  5. Composition according to any one of claims 1 to 4, characterised in that the ethoxylated glyceride has the following formula (I):
    wherein:
    Figure imgb0008
    - x, y and z represent, independently of each other, an integer between 0 and 40 and wherein the sum x + y + z is between 1 and 100, preferably between 10 and 40, and
    - R1, R2 and R3 represent, independently from each other, a hydrogen atom or a group -CO-A where A represents a saturated or unsaturated linear hydrocarbon chain comprising 5 to 25, preferably 10 to 20, carbon atoms and optionally substituted by an OH group,
    at least one of the groups R1, R2 and R3 not representing a hydrogen atom.
  6. Composition according to claim 5, characterised in that the ethoxylated glyceride is glycereth-17 cocoate, ethoxylated castor oil, or a mixture thereof.
  7. Composition according to any one of claims 1 to 6, characterised in that it is chosen from the following compositions (1) to (4):
    ■ composition (1) consisting, in relation to the total weight of the composition, of:
    - 97% by weight of a castor oil C16-C20 fatty acid methyl ester mixture, and
    - 3% by weight of glycereth-17 cocoate,
    a colorant optionally being added to such a composition,
    ■ composition (2) consisting, in relation to the total weight of the composition, of:
    - 73.5% by weight of a castor oil C16-C20 fatty acid methyl ester mixture,
    - 6% by weight of coconut diethanolamide,
    - 7% by weight of ethoxylated castor oil notably comprising 35 ethoxyl units,
    - 10% by weight of water, and
    - 3.5% by weight of bioethanol,
    ■ composition (3) consisting, in relation to the total weight of the composition, of:
    - 88% by weight of a castor oil C16-C20 fatty acid methyl ester mixture,
    - 4% by weight of ethyl lactate,
    - 4% by weight of ethoxylated castor oil notably comprising 35 ethoxyl units,
    - 1% by weight of glycereth-17 cocoate,
    - 2% by weight of water, and
    - 1% by weight of coconut diethanolamide,
    a colorant optionally being added to such a composition, and
    ■ composition (4) consisting, in relation to the total weight of the composition, of:
    - 74.8% by weight of water,
    - 3.8% by weight of sodium lauryl ether sulphate,
    - 14.15% by weight of glycereth-17 cocoate,
    - 0.3% by weight of fragrances,
    - 5% by weight of bioethanol,
    - 1% by weight of mono propylene glycol, and
    - 0.95% by weight of a castor oil C16-C20 fatty acid methyl ester mixture,
    a colorant optionally being added to such a composition.
  8. Use of an association of a castor oil C16-C20 fatty acid methyl ester mixture, wherein C18 fatty acids represent at least 70% by weight of the total weight of the castor oil C16-C20 fatty acid mixture with at least one ethoxylated glyceride as a cleaning agent.
  9. Use according to claim 8, characterised that the castor oil C16-C20 fatty acid methyl ester mixture is a castor oil C16-C20 fatty acid methyl ester mixture, comprising:
    - approximately 11% by weight of stearic acid methyl ester,
    - approximately 30% by weight of oleic acid methyl ester, and
    - approximately 40% by weight of linoleic acid methyl ester.
  10. Use according to any one of claims 8 and 9, characterised in that the ethoxylated glyceride has the following formula (I):
    wherein:
    Figure imgb0009
    - x, y and z represent, independently of each other, an integer between 0 and 40 and wherein the sum x + y + z is between 1 and 100, preferably between 10 and 40, and
    - R1, R2 and R3 represent, independently from each other, a hydrogen atom or a group -CO-A where A represents a saturated or unsaturated linear hydrocarbon chain comprising 5 to 25, preferably 10 to 20, carbon atoms and optionally substituted by an OH group,
    at least one of the groups R1, R2 and R3 not representing a hydrogen atom.
  11. Use according to claim 10, characterised in that the ethoxylated glyceride is glycereth-17 cocoate, ethoxylated castor oil, or a mixture thereof.
  12. Use according to any one of claims 8 to 11, for cleaning hard surfaces, such as floors, walls, machine frames, engines, fuel tanks or tools or as an anti-seize agent.
  13. Use according to any one of claims 8 to 12, characterised in that said association is contained in a composition according to any of claims 1 to 7.
  14. Use according to any one of claims 8 to 13, characterised in that a composition comprising said association is applied with a brush, with a cloth, by spraying, by spray-coating or by dip-coating.
  15. Use according to any one of claims 8 to 14, characterised in that a composition comprising said association is used at a temperature between -5°C and 80°C.
EP10305274.2A 2010-03-18 2010-03-18 Use of a combination of a mixture of fatty acid methyl esters in C16-C20 castor oil with at least one ethoxylated glyceride as a cleaning agent Active EP2368971B1 (en)

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EP2368971B1 true EP2368971B1 (en) 2014-06-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022238216A1 (en) * 2021-05-12 2022-11-17 Unilever Ip Holdings B.V. Composition

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10858573B2 (en) 2014-01-16 2020-12-08 Wilmar Trading Pte Ltd Olefinic ester compositions and their use as cleaning agents
EP3328978A1 (en) * 2015-07-31 2018-06-06 Oleon N.V. Composition for solubilization of organic residues
FR3136478A1 (en) 2022-06-10 2023-12-15 Arkema France Detergent composition based on a secondary alcohol alkoxylate

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GB9101850D0 (en) * 1991-01-29 1991-03-13 Du Pont Howson Ltd Improvements in or relating to printing
DE4126719A1 (en) * 1991-08-13 1993-02-18 Baldwin Gegenheimer Gmbh NONTIONIC LIQUID PRESSURE WASHING MACHINE FOR MACHINE RUBBER CLEANING IN OFFSET PRINTING MACHINES
FR2793702B1 (en) * 1999-05-19 2001-06-29 Inst Francais Du Petrole COMPOSITIONS FOR USE AS EMULSIFYING AND DISPERSING SURFACES, THEIR PREPARATION AND THEIR USES
EP1844759A1 (en) * 2006-03-31 2007-10-17 Kao Corporation, S.A. Compositions containing fragrance or perfume
FR2907128B1 (en) * 2006-10-12 2012-08-31 Arkema France COMPOSITIONS USEFUL AS SOLVENTS FOR CLEANING PAINTS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022238216A1 (en) * 2021-05-12 2022-11-17 Unilever Ip Holdings B.V. Composition

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