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WO2014083102A1 - Utilisation d'antistatiques dans des agents de revêtement - Google Patents

Utilisation d'antistatiques dans des agents de revêtement Download PDF

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Publication number
WO2014083102A1
WO2014083102A1 PCT/EP2013/074964 EP2013074964W WO2014083102A1 WO 2014083102 A1 WO2014083102 A1 WO 2014083102A1 EP 2013074964 W EP2013074964 W EP 2013074964W WO 2014083102 A1 WO2014083102 A1 WO 2014083102A1
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WO
WIPO (PCT)
Prior art keywords
use according
acid
salts
polymers
composition
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Application number
PCT/EP2013/074964
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German (de)
English (en)
Inventor
Fabien Jean Brand
Burkhard FROST
Original Assignee
Basf Se
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Publication date
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Publication of WO2014083102A1 publication Critical patent/WO2014083102A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials

Definitions

  • the present invention relates to the use of anionic polymers containing carboxylate groups, sulfonate groups and / or sulfate groups as antistatic agents in coating compositions.
  • Indoor coating compositions are subject to special requirements. For example, these compositions must not have harmful substances on the surface or release from the coating into the ambient air. Furthermore, they should show abrasion resistance and special surface qualities and allow trouble-free renovation work. In addition, the interior coating should be resistant to water and water vapor, especially in wet areas. For example, work rooms or children's rooms require resistance to mechanical, physical and chemical stress.
  • Antistatic agents prevent the electrostatic charge generated by friction.
  • the charge leads to the attraction of dust and dirt particles (Rompp Lexikon Chemistry, 10th Edition 1996, Volume 1, Georg Thieme Verlag Stuttgart and New York, ISBN 3-13-734610-X, keyword antistatic agents).
  • Some of the antistatic agents in the art are also referred to as anti-dust additives.
  • JP2009178954 A describes a cationic polyamine as an antistatic polymer in a polyester film.
  • the polyester film is used as a base film for transfer films in transfer printing process.
  • JP 2009019063 discloses ethylene / vinyl acetate copolymer compositions contained in an antistatic resin layer. The coatings are applied to packing material.
  • DE 102006045869 describes processes for the antistatic finishing of coatings, paints or varnishes.
  • antistatic ionic liquids such as 1, 3-dialkylimidazolium be used.
  • DE 102007026551 discloses pigment preparations comprising at least one pigment and at least one compound of the general formula CH 3 - (CH 2 ) n -CH 2 -O [(CH 2 ) pO] m -H.
  • the pigment preparation can be prepared by dispersing and drying. It can be used, among other things, for anti-static finishing in water-based paint and varnish systems, emulsion paints, printing inks, ink systems and coating systems.
  • EP 1996657 A1 describes an antistatic coating composition containing a conductive polymer.
  • a conductive polymer polyanilines, polypyrroles and polythiophenes are called.
  • Coating compositions are used as an antistatic layer in antistatic polarizing films of LCD panels. Furthermore, quaternary mono-ammonium compounds are known which are contained as antistatic agent in impregnating resin liquors (DE 102005029629 A1). The impregnating resin liquor is used for the impregnation of cellulose-containing fibrous materials.
  • DE 102005013767 A1 describes aqueous preparations which show soil-repelling properties. These contain polyurethanes, mineral particles and a polymer component which may contain polyacrylates, polymethacrylates, polystyrene, polyvinyl acetate, polyurethanes, polyalkyds, polyepoxides, polysiloxanes, polyacrylonitriles and / or polyesters. They are used for exterior coatings, in particular for the coating of roof tiles.
  • Ionic group-containing polymers have the advantage that they do not or only in very small amounts migrate from cured coatings, since they have less mobility compared to low molecular weight compounds.
  • the present invention therefore an object of the invention to eliminate the disadvantages of the prior art described above.
  • Compounds should be provided which can be used as antistatic agents in interior coating compositions (interior coating compositions).
  • the coating resulting after application and drying in contrast to the prior art, should show improved dust-repelling properties, so that dust deposition or soiling is reduced.
  • the coatings should have less or no dust repellency show no change in color and appearance, in particular the tendency to yellowing.
  • the coatings should have good abrasion resistance.
  • the compositions should be shelf-stable, process well, have a good flow, and have a low tendency to spew.
  • the object of the present invention was, in particular, to achieve a balance between the anti-dust property on the one hand and the abrasion resistance and processability on the other hand.
  • certain anionic polymers have been found which contain carboxylate groups, sulfonate groups and / or sulfate groups and can be used as an antistatic agent, without the disadvantages of the prior art.
  • certain anionic polymers have been found which contain carboxylate groups, sulfonate groups and / or sulfate groups and which can be used in interior coating compositions.
  • the coatings which can be produced from this have very good dust-repellent properties combined with good abrasion resistance and good processability of the coating compositions. Dust deposits, especially at critical points, can thus be reduced. At the same time, no significant change in the color and appearance of the coatings, especially in the yellowing tendency, can be observed. In addition, a good storage stability of the compositions is achieved.
  • anionic polymers containing carboxylate groups, sulfonate groups and / or sulfate groups has been found as an antistatic agent in coating compositions, wherein the polymers are selected from the group consisting of a) salts of the polymers of ethylenically unsaturated monomers
  • anionic polymers are known as dispersants for aqueous emulsion paints and are used in them for the dispersion of pigments and fillers.
  • the suitability of such anionic polymers as additives for reducing dust contamination and as an antistatic agent in coating compositions has hitherto been completely unknown and surprising.
  • the dispersant action is an effect in the liquid coating agent system between the particles to be dispersed and the liquid medium, while anti-static finishing of coatings or reduction of dust soiling is a characteristic of the finished, dry coating. It is precisely the known affinity of some of the abovementioned anionic polymers for particulate materials such as pigments and fillers that does not suggest that such anionic polymers can equip coating agents against soiling, in particular due to dirt particles.
  • compositions in which the aforementioned anionic polymers can be used are thermal, actinic, or physically curable.
  • they are physically curable.
  • they are curable neither thermally nor with actinic radiation.
  • compositions are usually physically cured at the prevailing room temperature (typically below 40 ° C, preferably 18 to 28 ° C, preferably 20 to 25 ° C).
  • the curing is carried out by evaporation of the volatile constituents such as water or organic solvents and / or coalescence of binder particles.
  • thermal curing means the heat-initiated crosslinking of the coating agent, which is considered to be heat at temperatures of from 40 ° C., in particular from 60 ° C.
  • actinic radiation is to be understood as electromagnetic radiation such as near infrared (NIR), visible light, UV radiation, in particular UV radiation, and corpuscular radiation such as electron radiation.
  • compositions may be coating agents suitable for both exterior and interior use.
  • these are interior coating compositions (interior coating compositions).
  • Corresponding paints and paints include wall paints, radiator paints and floor coatings, as well as paints for windows and doors.
  • the radiator, window, door and floor coatings are hereinafter generally referred to as paints.
  • the wall paints and lacquers are usually pigmented. Their solids content is preferably 20 to 80 wt .-%, preferably 40 to 75 wt .-%, each based on the total weight of the composition.
  • the composition can be applied in the form of transparent or semi-transparent coatings, these coatings containing no or very small amounts of pigments and fillers, preferably neither pigments nor fillers.
  • Such compositions are referred to below as glaze. They usually have very little or no hiding power.
  • the solids content of the glazes is preferably in a range of 5 to 50 wt .-%, based on the total weight of the composition.
  • the glazes also include impregnation coating compositions which are subsequently applied to suitable substrates, for example walls.
  • the solids content of the composition and its constituents is determined according to DIN ISO 3251 with a weight of 2.0 g at a test duration of 60 minutes at a temperature of 125 ° C.
  • Wall paints are usually applied in a wet layer thickness of 50 to 1000 ⁇ , preferably 100 to 500 ⁇ .
  • the wet layer thickness of the paints is preferably 20 to 500 ⁇ m, preferably 50 to 300 ⁇ m.
  • Glazes generally have wet film thicknesses of 1 to 500 ⁇ , preferably 10 to 200 ⁇ , on.
  • compositions preferably have a pH of 7 to 12.
  • the pH of the wall paints is preferably 7.5 to 12 and more preferably 7.5 to 10. In paints, the pH is preferably 7 to 10.
  • the parts by weight of all components of the composition add up to 100% by weight.
  • anionic polymers which are used according to the invention as antistatic agents are selected from the abovementioned groups a) to d) and mixtures thereof. Preferably, they are selected from group a). a) Salts of the polymers of ethylenically unsaturated monomers
  • the ethylenically unsaturated monomers copolymerized in the polymers are preferably selected from the group of the ethylenically unsaturated monomers containing carboxylic acid groups, the ethylenically unsaturated monomers containing carboxylic anhydride groups and / or the ethylenically unsaturated monomers containing sulfonic acid groups, and optionally from further ethylenically unsaturated monomers which are ethylenically unsaturated from the abovementioned ethylenically unsaturated monomers unsaturated monomers are different.
  • units containing sulfate groups are to be present in the polymer, these can preferably be prepared by copolymerizing Vinyl acetate, subsequent hydrolysis to vinyl alcohol units and subsequent sulfation are introduced. After the polymerization, the acid groups and / or carboxylic anhydride groups in the polymer are completely or partially salified.
  • the salts of the polymers of ethylenically unsaturated monomers are preferably the salts of polymers which are obtained by polymerization of acrylic acid, methacrylic acid, maleic anhydride, styrenesulfonic acid and / or vinylsulfonic acid and optionally further ethylenically unsaturated monomers.
  • the polymerized units containing acid groups are neutralized in the usual way completely or partially, preferably completely, to the corresponding salts.
  • the anhydride units are previously subject to hydrolysis.
  • Vinyl sulfate units can be introduced, for example, by first introducing vinyl acetate units into the polymers, hydrolyzing them to vinyl alcohol units, and then sulfating them, for example with pyridine-SO 3.
  • the salts of the polymers are preferably the sodium or potassium salts of the polymers.
  • At least one charge is introduced into the polymer per monomer employed.
  • the salt of a polyacrylic acid this is the case when essentially all introduced COOH groups are converted into carboxylate groups, since exactly one carboxylate group is generated per acrylic acid monomer as an anionic group and thus a charge is introduced.
  • each maleic anhydride monomer it is even possible to introduce two charge-bearing carboxylate groups into the polymer. For example, polymerizing in a molar ratio of 50:50 maleic anhydride with a charge-free monomer such as diisobutylene and then converting all of the anhydride-derived COOH groups into salts, also produces a polymer having an average of one charge per monomer introduced.
  • Very particularly preferred products are the salts, preferably the sodium or potassium salts of the homopolymers of polyacrylic acid, polymethacrylic acid, polystyrenesulfonic acid, polyvinylsulfonic acid, and the copolymers of maleic anhydride with one or more acids selected from the group consisting of acrylic acid, methacrylic acid and styrenesulfonic acid and / or an acid group-free monomer selected from the group of vinylically monounsaturated monomers, such as diisobutylene.
  • polyvinyl sulfate is particularly preferred.
  • Typical and preferred charge densities of the salts of the polymers of ethylenically unsaturated monomers a) are between 3 and 12 meq / g, more preferably 4 and 12 meq / g.
  • charge density is used in the context of this invention, this always means the charge density of the solvent- or water-free anionic polymer and not, for example, the charge density of a commercially available solution of the anionic polymer used in accordance with the invention
  • acrylic acid has a molecular weight of 94 g / mol and the molecule carries an acid group, that is, after complete salification, the molecule contains a carboxylate group and thus a charge
  • Suitable products a) are the products marketed under the trade names Sokalan®PA, Sokalan®CP and Relugan SE by BASF SE (Ludwigshafen, Germany) and Provichem 220P from Proviron.
  • the company Aldrich also offers corresponding products for example under the product numbers 561215, 662631, 527483, 561967, 262447, 271969 and 674044.
  • Condensates of naphthalenesulfonic acid and formaldehyde b) are available under the trade names Tamol NN from BASF SE (Ludwigshafen, Germany). Condensates of phenolsulfonic acid and formaldehyde and urea are also available, for example, from BASF SE under the trade names Tamol PP or Tamol DN 40.
  • Typical and preferred charge densities of the condensates b) are between 3 and 8, preferably 3 and 5 meq / g. c) lignosulfonates
  • Lignosulfonates are the salts of lignin sulfonic acid, which are formed during sulfite pulping of lignin in the production of cellulose.
  • Lignin is a high molecular weight aromatic substance that fills the spaces between the cell membranes in woody plants and turns them into wood. Lignin can be considered chemically as a higher molecular weight derivative of phenylpropane.
  • lignin is sulfonated on the C3 side chains of the phenylpropane repeat units. Depending on the bases used in the digestion process, water-soluble sodium, ammonium, calcium or magnesium salts result.
  • the number of sulfonic acid groups is about 2 per 5 to 8 phenylpropane units.
  • Typical and preferred charge densities of the lignosulfonates c) are between 3 and 8, preferably 3 and 5 meq / g.
  • the lignosulfonates c) are somewhat inferior in terms of the color fidelity of the coatings.
  • Lignosulfonates are commercially available from various manufacturers, for example under the trade name REAX 88B. d) Salts of carboxymethylcellulose
  • Carboxymethylcelluloses are cellulose ethers, namely derivatives of cellulose, in which a part of the hydroxy groups are linked as ethers with a carboxymethylene group (CH 2 COOH).
  • the salts of carboxymethylcelluloses are generally readily soluble in water and non-toxic, so they are even approved as food additive E466 in the European Union.
  • Typical and preferred charge densities of the salts of the carboxymethylcelluloses d) are between 3 and 8, preferably 3 and 5 meq / g.
  • Coating composition is preferably 0.4 to 15% by weight, preferably 0.5 to 10% by weight, more preferably 0.5 to 7% by weight, and most preferably 0.8 to 5% by weight each based on the total weight of the coating composition. If the compositions contain less than 0.4% by weight of the anionic compounds, the dust repellency is reduced. In the case of proportions above 15% by weight, abrasion resistance, storage stability and processability in some cases clearly decrease; in some cases, the dust-repellent effect is less pronounced.
  • the amount used tends to be higher than, for example, in wall paints. Therefore, it has proven to be favorable in paints up to about 15 wt .-% of the anionic polymer, preferably up to 12 wt .-%, particularly preferably up to 10 wt .-% use.
  • the preferred upper limits, based on the total weight of the coating composition are preferably lower, more preferably 7% by weight, more preferably 5% by weight and most preferably 4% by weight. %.
  • the anionic polymers preferably have a number average molecular weight of 1000 to 1,000,000 g / mol. Preference is given to anionic compounds having from 2,000 to 1,000,000 g / mol, more preferably from 2,000 to 200,000 g / mol.
  • the number average molecular weight is determined by means of gel permeation chromatography (GPC) using a dextran standard.
  • the eluent used was aqueous sodium nitrate solutions (0.5 M), which were admixed with 0.02% by weight of sodium azide, based on the total weight of the solution.
  • the anionic compounds are preferably miscible with water or soluble in water.
  • the anionic polymers are provided in an aqueous solution.
  • the proportion of anionic polymers in these aqueous mixtures or solutions is preferably 10 to 90 wt .-%, preferably 20 to 70 wt .-% and particularly preferably 30 to 60 wt .-%.
  • the "further binders" (B) in the context of the present invention are compounds which are responsible for the film formation in the composition and, according to the definition used herein, represent the nonvolatile content of the coating material without pigments, fillers, the anionic antistats which can be used according to the invention Polymers (A) and without additives (Z).
  • the coating agent compositions usually contain at least one "further binder" (B).
  • the proportion of further binders is preferably from 5 to 90% by weight, based on the total weight of the composition.
  • a proportion of further binders of from 5 to 80% by weight is preferred. and particularly preferably from 6 to 70% by weight.
  • the proportion of further binders is preferably 1 to 80 wt .-%, particularly preferably 3 to 50 wt .-%.
  • Glazes preferably contain 10 to 90 wt .-% of (B).
  • the composition may contain alkyd resins, epoxy resins, polyurethanes, vinyl acetate / ethylene copolymers, as well as binders based on acrylates, styrene and / or vinyl esters such as styrene acrylates or butyl acrylates.
  • the minimum film-forming temperature of the binders is preferably 0 ° C to 40 ° C, preferably 0 ° C to 20 ° C.
  • the binders have a minimum film-forming temperature of 0 ° C to 5 ° C.
  • the minimum film-forming temperature indicates the temperature above which a closed film is formed. Among them, the film formation is usually disturbed or incomplete. The determination is carried out according to DIN 53787: 1974-02 (see Rompp Lacke and printing inks, Georg Thieme Verlag Stuttgart / New York 1998, ISBN 3-13-776001 -1, keyword "minimum film forming temperature").
  • Paints preferably contain polyurethanes, acrylates, alkyd resins or epoxy resins and mixtures thereof.
  • the glazes can contain the binders mentioned for wall paints and lacquers.
  • the composition may contain fillers.
  • the fillers may be inorganic or organic.
  • organic filler for example, wood flour can be used.
  • the proportion of fillers is preferably 0 to 90 wt .-%, based on the total weight of the composition.
  • Glazes preferably contain at most 5% by weight, preferably at most 2% by weight and very particularly preferably at most 1% by weight of fillers. In particular, glazes contain no fillers.
  • the proportion of filler is preferably 1 to 90% by weight, particularly preferably 20 to 60% by weight.
  • the proportion of fillers is preferably in the range from 0 to 60 wt .-%, particularly preferably 0 to 35 wt .-%.
  • the composition may further contain pigments. Their proportion in the composition is preferably 0 to 75% by weight, based on the total weight of the composition.
  • the pigment content is preferably in the range from 0 to 50% by weight, particularly preferably in the range from 4 to 25% by weight.
  • a pigment content of 10 to 60 wt .-% is preferred.
  • the pigment content in glazes is preferably 0 to 15 wt .-%. Glazes particularly preferably contain only transparent pigments or no pigments, most preferably no pigments at all.
  • Pigments are powdery or platelet-shaped colorants which, in contrast to dyes, are insoluble in the surrounding medium (cf Rompp Lacke and Druckmaschine, Georg Thieme Verlag Stuttgart / New York 1998, ISBN 3-13-776001-1, keyword "pigments").
  • the pigment is selected from the group consisting of organic and inorganic, colorant, transparent, corrosion inhibiting, fluorescent and phosphorescent pigments.
  • Preferred pigments for wall paints and lacquers are coloring pigments, and for glazes transparent pigments. water
  • compositions may contain water. Preferably, 8 to 60 wt .-%, more preferably 15 to 50 wt .-% water.
  • compositions may contain organic solvents.
  • the proportion of organic solvents in the wall paints is less than 5 wt .-%, preferably less than 2 wt .-% and particularly preferably less than 1 wt .-%, each based on the total weight of the wall paints.
  • the wall paints contain no organic solvents.
  • organic solvents for example, trimethylpentane, propylene glycol or dipropylene glycol butyl ether are contained in wall paints.
  • the proportion of organic solvents in paints is preferably 0 to 30 wt .-% and particularly preferably 0 to 10 wt .-%, each based on the total weight of the coatings.
  • Suitable organic solvents are, for example, white spirit, esters such as butyl acetate or butyl diglycol acetate or ethers such as glycol ether or methyl ethyl ketone.
  • Glazes contain solvents in a proportion of 0 to 60 wt .-%, preferably from 0 to 40 wt .-%, each based on the total weight of the glazes. Suitable are the solvents mentioned for wall paints and lacquers.
  • the composition may contain additives such as preservatives, thickeners, dispersants and defoamers.
  • Suitable preservatives are, for example, isothiazolinone preparations such as 2-methyl-2H-isothiazol-3-one or 1,2-benzisothiazolin-3H-one.
  • a suitable aqueous preparation is available, for example, under the name Acticide MBS from Thor GmbH, Speyer.
  • the proportion of preservative 0 to 2 wt .-%, preferably 0.001 to 0.3 wt .-%, each based on the total weight of the composition.
  • Suitable thickeners are those skilled in the art for paints and inks thickeners. Examples which may be mentioned are cellulose ethers, bentonite, polysaccharides, fumed silicas or phyllosilicates. The preferred proportion is 0 to 3 wt .-%, preferably 0.001 to 1 wt .-%, each based on the total weight of the composition.
  • Suitable dispersants are the dispersants for paints and inks known to the person skilled in the art.
  • the proportion is preferably 0 to 2 wt .-%, preferably 0.001 to 0.5 wt .-%, each based on the total weight of the composition.
  • Suitable defoamers are, for example, poly (organo) siloxanes, silicone oils or mineral oils.
  • the defoamer fraction is preferably 0 to 1% by weight, preferably 0 to 0.5% by weight, in each case based on the total weight of the composition.
  • an additive (Z) such as a thickener or dispersant chemically fall within one of the above definitions of the antistatic agents (A) (a), (b), (c) or (d), it will become exclusive in the present invention by weight the antistatic agent (A).
  • the anionic polymers to be used according to the invention are particularly suitable for use as antistatic agents in interior coating compositions (interior coating compositions).
  • interior coating compositions can also be used in coating compositions, which can be used for the exterior of the building.
  • the compositions are preferably used as wall paints, in particular interior wall paints, lacquers, in particular for windows, doors, radiators or floors, or glazes, in each case preferably for the interior.
  • the glazes have the particular advantage that they can be subsequently applied to already painted or painted substrates in order to additionally provide a dust-repellent coating.
  • compositions in which the antistatic agents are used are suitable for coating substrates which are or are to be installed in the building exterior or interior area, preferably in the interior.
  • the substrates are usually made of metal, concrete, gypsum, mortar, building plaster, wood or wood fibers, plastics, paper, plasterboard.
  • Suitable substrates are used or used, for example, as walls or ceilings, heaters, floors, window frames, doors and door frames or wallpapers.
  • the walls or ceilings may for example consist of concrete, wood or plasterboard, be plastered and / or have wallpaper.
  • the compositions can be applied to substrates already installed in or on the building. It is also possible first to coat the substrates such as wallpapers, plasterboard, doors or windows and then to install or install in or on the building.
  • compositions are prepared by all customary and known, suitable for the respective coating materials application methods, such.
  • spraying, spraying or painting is carried out.
  • it is cured at room temperature, in particular physically.
  • compositions that have been treated with Sokalan PA 20 show a significantly reduced dust attraction.
  • the surface resistance of the composition containing the anionic polymer is lower than in the Composition without the anionic polymer.
  • the antistatic, dust-repellent property is improved by the addition of the anionic polymer. It is surprising in this case that the addition of an average amount (3 parts by weight of Sokalan PA 20) is optimal with respect to dust attraction, while the addition of larger amount further reduces the surface resistance, but promises no improvement in dust attraction, but the effect even slightly lower.
  • Examples 7 to 10 also have an improved antistatic, dust-repellent property with a different coating composition. It is also surprising in this case that the addition of an average amount (5 parts by weight of Sokalan PA 20) is optimal in terms of dust attraction, while the addition of a larger amount further reduces the surface resistance, but promises no improvement in terms of Staubanziehung, this even somewhat lower.
  • Example 4 was repeated, using instead of the 5 parts by weight Sokalan PA 20 other anionic polymers containing commercial products in an amount of 5 parts by weight. Insofar as the commercial products represent solutions of the anionic polymers, this was indicated in the table, including the concentration of the solution. The results are shown in the following table.
  • Carboxymethylcellulose, Na salt (diluted 6.60x10 10 1, 5 30000 4, 13 to a 20% solution in water)
  • the dust test is carried out on the basis of the test from WO 01/12713 A.
  • the sample bodies are coated.
  • the coated panels are then exposed to an atmosphere of whirled-up dust.
  • the dust is whirled up and exposed to the test specimen with the stirrer running for 14 s of this dust atmosphere.
  • more or less dust settles on the specimens.
  • the dust is fixed by spraying a clear matt varnish.
  • the assessment of the dust deposits is carried out by means of a spectrophotometric analysis.
  • a horizontal spectrophotometer CM-3600 from Minolta
  • the value L * indicates the brightness between 0 and 100, a value of 100 corresponds to the maximum brightness.
  • the brightness L * is defined according to the colorimetric norm (CIE1964: L * C * h). This is determined according to DIN 6167 at an angle of 10 ° and normal light D65 (according to ISO 3664: radiation distribution with a color temperature of 6504 K). The slight yellowing or reduction of L * by applying the matt varnish can be neglected.
  • the color dispersions were applied to plastic films with a doctor blade at a wet film thickness of 300 ⁇ m (Leneta film, Leneta, Mahwah, NJ, 07430 USA). The drying was carried out at 20 ° C and a relative humidity of 50% for at least 24 hours.
  • the surface conductivity values SR [ohms / square] were measured with a guard ring electrode with 5 mm measuring gap and 20 cm 2 measuring surface in Analogous to the standard DIN 53482 at a voltage of 500 V and 22 ° C and at a controlled relative humidity (RH). Before the measurement, the samples were stored for at least 5 days at the humidity chosen for the measurement.
  • the wet abrasion was determined according to DIN EN 13300.
  • the Be harshungsmatenal was coated with a doctor blade in a wet layer thickness of 300 ⁇ on a PVC film (Leneta film, Fa. Leneta, Mahwah, NJ, 07430 USA) and in the climatic room for 28 days at 20 ° C and 50% relative humidity dried. The samples are then trimmed and the gross weight is determined with an analytical balance.
  • the samples in a special scrubber device from Erichsen using a scouring pad S-UFN 158 x 224 mm from 3M Scotch-Brite a total of 200 rubbing movements with simultaneous exposure to a 0.25% aqueous surfactant solution ( Surfactant Marlon A 350 from the company Sasol Germany GmbH) exposed.
  • a 0.25% aqueous surfactant solution Surfactant Marlon A 350 from the company Sasol Germany GmbH

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne l'utilisation de polymères anioniques contenant des groupes carboxylate, des groupes sulfonate et/ou des groupes sulfate, les polymères anioniques étant sélectionnés dans le groupe consistant en sels des polymérisats de monomères éthyléniquement insaturés, sels des condensats de formaldéhyde et acide naphtaline-sulfonique et/ou formaldéhyde, acide phénolsulfonique et urée, lignosulfonates, sels de la carboxyméthylcellulose et des mélanges des sels précités comme antistatique dans des compositions d'agents de revêtement. L'antistatique a pour effet que la poussière adhère moins au revêtement de la composition. Les compositions sont utilisées en particulier à l'intérieur de bâtiments.
PCT/EP2013/074964 2012-11-30 2013-11-28 Utilisation d'antistatiques dans des agents de revêtement WO2014083102A1 (fr)

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US201261731495P 2012-11-30 2012-11-30
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US61/731,495 2012-11-30
EP12195051.3 2012-11-30

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CN104845517A (zh) * 2015-05-08 2015-08-19 江苏省海安石油化工厂 用于涂料的组合物、涂料及其制备方法
US9475743B2 (en) 2013-03-13 2016-10-25 Wintershall Holding GmbH Process for the preparation of substituted TRIS(2-hydroxyphenyl)methane
CN106188414A (zh) * 2016-08-08 2016-12-07 杭州华塑实业股份有限公司 一种pet聚酯薄膜抗静电剂及其制备方法
US9718737B2 (en) 2015-04-21 2017-08-01 Behr Process Corporation Decorative coating compositions
CN107964308A (zh) * 2017-10-17 2018-04-27 陕西理工大学 一种环保型木材涂料
EP3385338A1 (fr) * 2017-04-06 2018-10-10 Daw Se Matériau de revêtement aqueux
CN111712548A (zh) * 2018-03-01 2020-09-25 科莱恩国际有限公司 含有水玻璃的漆组合物

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9475743B2 (en) 2013-03-13 2016-10-25 Wintershall Holding GmbH Process for the preparation of substituted TRIS(2-hydroxyphenyl)methane
US9718737B2 (en) 2015-04-21 2017-08-01 Behr Process Corporation Decorative coating compositions
US10118864B2 (en) 2015-04-21 2018-11-06 Behr Process Corporation Decorative coating compositions
CN104845517A (zh) * 2015-05-08 2015-08-19 江苏省海安石油化工厂 用于涂料的组合物、涂料及其制备方法
CN106188414A (zh) * 2016-08-08 2016-12-07 杭州华塑实业股份有限公司 一种pet聚酯薄膜抗静电剂及其制备方法
CN106188414B (zh) * 2016-08-08 2018-05-15 杭州华塑实业股份有限公司 一种pet聚酯薄膜抗静电剂及其制备方法
EP3385338A1 (fr) * 2017-04-06 2018-10-10 Daw Se Matériau de revêtement aqueux
EP3385338B1 (fr) 2017-04-06 2020-05-06 Daw Se Matériau de revêtement aqueux
CN107964308A (zh) * 2017-10-17 2018-04-27 陕西理工大学 一种环保型木材涂料
CN111712548A (zh) * 2018-03-01 2020-09-25 科莱恩国际有限公司 含有水玻璃的漆组合物

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