WO2004015016A2 - Composition ignifugeante, procede de preparation et utilisation de cette composition - Google Patents
Composition ignifugeante, procede de preparation et utilisation de cette composition Download PDFInfo
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- WO2004015016A2 WO2004015016A2 PCT/FR2003/002444 FR0302444W WO2004015016A2 WO 2004015016 A2 WO2004015016 A2 WO 2004015016A2 FR 0302444 W FR0302444 W FR 0302444W WO 2004015016 A2 WO2004015016 A2 WO 2004015016A2
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- silica
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- flame retardant
- retardant
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
- C09K21/04—Inorganic materials containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/92—Fire or heat protection feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249955—Void-containing component partially impregnated with adjacent component
- Y10T428/249956—Void-containing component is inorganic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
- Y10T428/249995—Constituent is in liquid form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
Definitions
- the present invention relates to a new flame retardant composition based on a flame retardant agent impregnated on a porous support such as a mineral oxide of high porosity, its preparation process and its use for flame retardant materials and in particular polymers.
- the flame retardancy of polymers is usually carried out with flame retardants in solid form because their incorporation into the polymer is easy to implement.
- the use of a liquid flame retardant requires the use of pumps. This difficulty of implementation is further increased if the flame retardant to be used is in the form of a viscous liquid. In this case, it is then necessary to provide a system for heating the container containing the flame retardant, supply and outlet pipes and the pump used.
- the addition of flame retardant additives to the polymers is carried out either directly by adding the generally solid flame retardant to the molten polymer or by the use of masterbatches or concentrated mixtures. These mixtures are obtained by premixing a large quantity of the flame retardant in a matrix which may be identical to the polymer to be flame retarded or a polymer enabling better dispersion of the flame retardant.
- the masterbatch is formed, for example in the form of extruded granules or pellets.
- red phosphorus a compound used to flame retard polyamides, is carried out via masterbatches sold under the trade name.
- polymer sponges which are then impregnated with the liquid flame retardant.
- These polymer sponges can for example be obtained by injecting an inert gas such as freon into molten polymer, such as the Acurels sold by the company AKZO.
- freon an inert gas
- molten polymer such as the Acurels sold by the company AKZO.
- this solution is expensive.
- the impregnation remains delicate when the flame retardant is a viscous liquid.
- liquid flame retardants based on phosphorus such as phosphonic acids, their esters and salts, phosphoric esters or phosphinic acids, their esters and salts.
- activation temperature is meant the temperature at which the flame retardant property of the additive occurs either, for example, by decomposition or by reaction with the matrix or another compound of the composition.
- activation temperature is meant the temperature at which the flame retardant property of the additive occurs either, for example, by decomposition or by reaction with the matrix or another compound of the composition.
- a new flame-retardant composition comprising a flame-retardant agent impregnated on a porous solid support, characterized in that the surface of the porous support has a hydrophilic character or hydrophobic, the organophosphorus compound having a hydrophilic or hydrophobic character equivalent to said surface of the porous compound.
- the liquid flame retardant agent or compound is advantageously different from orthophosphoric acid or polyphosphoric acid.
- impregnation is meant that the flame retardant compound is bound at least temporarily to the solid substrate by any type of bond such as absorption in the porous structure of the particle if it exists, wetting or adsorption of the flame retardant compound on the surface of the particles. by at least one layer of the flame retardant compound, or attachment or grafting of the flame retardant compound to the surface of the particles by chemical or physico-chemical bonds.
- adsorption or fixation is facilitated by the choice of a solid substrate having surface properties compatible with the properties of the flame retardant compound.
- a substrate with a hydrophilic surface property is advantageously combined with a flame-retardant compound with a hydrophilic character and vice versa for compounds with a hydrophobic character.
- the solid substrate particle can advantageously comprise elements, radicals which promote the adsorption of the flame retardant compound on the surface of said particle.
- the new flame-retardant composition of the invention has the advantage of being easy to handle and easily incorporated into the materials which it must make fire resistant, while retaining good flame-retardant performance.
- fire resistance is mainly meant a property of extinguishing and not propagating the combustion of the article.
- This property is in particular illustrated by standardized tests such as, for example, for measuring this property on molded articles, the test called "UL94"("Under riters Laboratories"), or for textile articles, ie surfaces woven, knitted, tufted, flocked or nonwoven, tests such as that described in standard EN533, standard NF G07-128 of December 1978, standard ADB0031 published on 02/22/2001, standard AITM 2.0007 B, AITM 2.0003 standard or NF P92.504 / 501/503/507 standards applicable in particular in the building sector.
- this new flame-retardant composition when it is based on phosphorus and in particular on phosphoric, phosphonic or phosphinic esters, can be used for flame-retardant polymers and in particular polyamide, polyester and more generally polymers requiring a high temperature for shaping and producing articles, for example a temperature above 200 ° C.
- the processes for shaping the polymers can be implemented at such temperature levels without a significant interaction on the properties of the polymer being observed, for example degradation or setting. en masse of it.
- this result is very interesting because when such a flame-retardant agent is introduced directly, for example into polyamide, in the extrusion or injection processes, there is an increase in the degree of polymerization of the polymer leading to solidification preventing thus any implementation of such a polyamide composition. With the polyesters, there is a degradation of the polymer also prohibiting the use of these flame retardants.
- this new flame-retardant composition has an activation temperature and / or a duration of action adaptable to the polymer in which it is added.
- solid substrate or porous support is intended to mean, preferably, an inorganic substrate which is solid at the transformation temperature of polymeric materials and more particularly an inorganic oxide.
- the mineral oxide can be chosen from silica, alumina, silica-alumina, sodium silico-aluminate, calcium silicate, magnesium silicate, zirconia, magnesium oxide, calcium, cerium oxide or titanium oxide.
- the mineral oxide can be completely or partially hydroxylated or carbonate.
- substrates those which can be dispersed in the thermoplastic material in the form of particles or aggregates of small diameter, advantageously in order to obtain dispersed particles having a diameter or size less than 5 ⁇ m, and even more advantageously than at least 80% in many of the dispersed particles have a diameter or size less than 1 ⁇ m.
- Such a dispersion can be obtained by mixing particles already having such size characteristics in the polymeric material or more advantageously by using granules or agglomerates of substrates formed by the agglomeration of particles or aggregates of which at least 80% by number have a diameter or size less than 1 ⁇ m.
- These granules or agglomerates after addition to the polymeric material and under the action of the shearing forces applied to achieve the dispersion, disintegrate into aggregates or elementary particles, thus making it possible to obtain a very good dispersion of the flame retardant in the polymer or polymeric material.
- the agglomerates or granules preferably have a high specific surface and a large porosity between the aggregates or elementary particles to allow the flame-retardant compound to adsorb at least on the surface of the aggregates or particles.
- the aggregates or particles may also have a porosity allowing the absorption of the flame retardant compound or agent.
- the average diameter or size of the granules or agglomerates is not critical and is advantageously chosen to be able to easily handle the composition with flame-retardant properties, in particular when it is added to the polymeric material.
- the average diameter or size of these granules is also chosen to facilitate the addition and adsorption of the flame retardant compound, for example, to avoid sticking between the different granules.
- granules with an average diameter D50 greater than 60 ⁇ m, advantageously between 80 ⁇ m and 300 ⁇ m are preferred.
- certain silicas have these characteristics and are therefore particularly preferred.
- the mineral substrates which are particularly suitable for the invention are those in which the granules or agglomerates have a high porosity and a specific surface.
- the preferred substrates are those whose granules have a total pore volume at least equal to 0.5 ml / g, preferably at least equal to 2ml / g. this pore volume is measured by the mercury porosimetry method with a MICROMERITICS Autopore III 9420 porosimeter, according to the following procedure:
- the sample is dried beforehand for 2 hours in an oven at 200 ° C.
- the measurements are then carried out according to the procedure described in the manual supplied by the manufacturer.
- the pore diameters or sizes are calculated by the relation of WASHBURN with a teta contact angle equal to 140 ° C and a gamma surface tension equal to 485 Dynes / cm.
- mineral substrates or porous support having a pore volume of at least 0.50 ml / g for pores whose diameter or size is equal to or less than 1 ⁇ m are preferred.
- the mineral substrate is a silica, advantageously an amorphous silica.
- Silicas are obtained by different processes, two of which lead to silicas called precipitated silica and combustion silica. Silica can also be prepared in the form of a gel.
- Silicas having a specific surface area measured according to the CTAB method, greater than 50 m 2 / g are preferred.
- Precipitated silicas are preferred because they can be in the form of agglomerated particles forming granules of size at least 50 ⁇ m or greater than 150 ⁇ m.
- silicas may be suitable for the invention, such as those described in French patent application No. 01 16881 which are pyrogenic silicas or partially dehydroxylated silicas by calcination or surface treatment.
- silicas used as solid mineral substrate are described only for information and as preferred embodiments. We can also use other silicas obtained by other processes having properties of porosity and dispersibility suitable for carrying out the invention.
- the flame retardant additive comprises a flame retardant compound adsorbed on the particles of mineral substrate.
- this adsorption is obtained by impregnating the granules or agglomerates.
- This impregnation is carried out by any conventional means and, for example, by mixing the substrate with the flame retardant compound in the liquid state or in the form dispersed or dissolved in a solvent. In the latter case, the solvent will be removed, after impregnation of the substrate, by evaporation.
- a flame retardant compound or agent is meant one or more flame retardant compounds, or a mixture of compounds forming a system having flame retardant properties.
- the mineral oxide is preferably precipitated silica, it may for example be a silica sold under the trade names Tixosil 38A, Tixosil 38D or Tixosil 365 from the company RHODIA.
- the precipitated silica can be a highly dispersible silica, like the silicas described in documents EP 520862, WO 95/09127 or WO 95/09128, which facilitates its dispersion in the polymer and has a positive effect on the mechanical properties of the material obtained. . It can for example be a silica sold under the trade names Z1165 MP or Z1115 MP from the company Rhodia.
- the precipitated silica may be in the form of substantially spherical beads, in particular of average size of at least 80 microns, for example at least 150 microns, obtained by means of a nozzle atomizer, as described for example in document EP 0018866. It can for example be silica called Microperle. This form makes it possible to optimize the impregnation capacity and the flowability of the powder as described by example in documents EP 966207 or EP 984772. It can be, for example, a TIXOSIL 38X or TIXOSIL 68 silica from the company RHODIA.
- Amorphous silica can be silica with low water uptake.
- low water uptake is meant a water uptake of less than 6% and preferably less than 3%.
- They may be precipitated silicas described in patent application FR 01 16881 filed on December 26, 2001 by the company Rhodia, pyrogenic silicas or partially dehydroxylated silicas by calcination or by surface treatment.
- the flame retardant of the invention is advantageously a liquid agent at room temperature (about 25 ° C).
- This liquid agent can be chosen from all the liquid flame retardants known to those skilled in the art, with the exception of orthophosphoric acid or polyphosphoric acid.
- liquid flame retardants based on phosphorus such as phosphonic acids their esters and salts, phosphoric esters or phosphinic acids their esters and salts.
- liquid flame retardants which are viscous, which stick and / or are difficult to handle or clean can be used.
- viscous liquid any liquid which has a viscosity greater than 100 centipoise at a temperature of 25 ° C, preferably more than 1000 centipoise at a temperature of 25 ° C, and even more preferably more than 10000 centipoise at a temperature 25 ° C, this viscosity being measured by a Brookfield type device with a mobile and a suitable speed of rotation at the viscosity measured. For example, a cylindrical mobile and a rotational speed of 50 rpm are used in the case where the viscosity is close to 100 centipoise.
- flame retardant compounds suitable for the invention there may be mentioned, by way of example, methyl-bis (5-ethyl-2-methyl-2-oxido-1,2,3-dioxaphosphorinan-5-yl) acid.
- methyl phosphonic alone or in mixture with methyl acid (5-ethyl-2-methyl-2-oxydo-1, 3, 2 -dioxaphosphorinan-5-yl) methyl phosphonic, resorcinol bis (diphenyl phosphate), bisphenol A bis (diphenyl phosphate), polyphosphate esters, diethyl phophinic acid, ethylmethyl phophinic acid, methyl-n-propyl phosphinic acid, their mixtures, esters and salts.
- these compounds can be impregnated directly on the substrate such as silica for example, or dissolved in a solvent such as, for example, water, organic solvents such as ketones, alcohols, ethers, hydrocarbons, halogenated solvents, for example.
- a solvent such as, for example, water, organic solvents such as ketones, alcohols, ethers, hydrocarbons, halogenated solvents, for example.
- a liquid flame retardant is used.
- the solid substrate is then impregnated with the solution obtained. In this case, it is possible to remove the solvent by drying.
- the impregnation is carried out dry, that is to say that the flame retardant compound is gradually added to the solid substrate to allow total impregnation or adsorption.
- the flame retardant compound or the solution of the flame retardant compound has sufficient fluidity.
- this impregnation or adsorption can be carried out at temperatures higher than ambient temperature, and lying in a range between 20 ° C and 200 ° C, preferably less than 100 ° C.
- the solid substrate can also be preheated in the same temperature range to facilitate impregnation, especially in the case of a product requiring fluidification by heating.
- the porous support or solid substrate can also be dried before impregnation either by drying or by calcination to remove the water present. This makes it possible to adapt the hydrophilic or hydrophobic character of the surface of the porous support as a function of the flame-retardant agentu product to be impregnated.
- Drying can be carried out by any conventional technique known to those skilled in the art.
- the impregnation can be done in a single step or in several successive steps.
- the amount of flame retardant impregnated or adsorbed can vary widely. However, it is limited and at most equal to the quantity necessary to fill the total pore volume of the mineral substrate in the case of impregnation of granules or agglomerates having a porosity.
- the flame retardant additive which must be added to the polymeric material must preferably be a powder or a solid in the form of granules having good fluidity to allow this addition.
- the amount of flame retardant compound added is determined to obtain a solid impregnated product which can be handled and added to the polymeric material.
- the concentration by weight of flame retardant compound in the flame retardant composition is between 20% and 70% relative to the weight of flame retardant composition, advantageously between 20% and 50%.
- the flame retardant is too viscous at room temperature to be impregnated, it can be heated beforehand and the impregnation can thus be carried out hot.
- the temperature range used for hot impregnation is between 30 and 300 ° C.
- the temperature used for hot impregnation is between 50 and 100 ° C.
- the mineral oxide can also be preheated in the same temperature range to facilitate impregnation.
- a concentrated liquid flame retardant is used.
- the mineral oxide is then impregnated with the solution obtained. In this case, it is possible to remove the solvent from the impregnated mineral oxide by drying.
- the impregnation can be done in a single step or in several successive impregnation steps.
- the flame retardant additive can be in the form of a powder, which can be shaped according to the shaping methods commonly used in industry.
- the present invention also relates to the use of the flame retardant composition described above for the flame retardancy of various materials, in particular polymers such as thermoplastic polymers, thermosetting polymers, elastomers.
- the polymer or copolymer when it is thermopiastic, it can be a polymer chosen from polyamides, polycarbonates, polyesters, styrene polymers, acrylic polymers, polyolefins, polyvinyl chlorides and their derivatives, polyphenyls ethers, polyurethanes or their mixtures.
- the polymer is a thermoplastic or thermosetting polyamide
- it is chosen from the group comprising polyamides obtained by polycondensation of a linear dicarboxylic acid with a linear or cyclic diamine such as PA 6.6., PA.6.10, PA 6.12, PA 12.12, PA 4.6, MXD 6 or between an aromatic dicarboxylic acid and a linear or aromatic diamine such as polyterephthalamides, polyisophthalamides, polyaramides, polyamides obtained by polycondensation of an amino acid on itself, the amino acid can be generated by hydrolytic opening of a lactam cycle such as, for example PA 6, PA 7, PA 11, PA 12.
- the preferred polyamides are polyhexamethylene adipamide, polycaprolactam, or the copolymers and blends between polyhexamethylene adipamide and polycaprolactam.
- the polymer is a polyester, it may for example be polybutylene terephthalate, polypropylene terephthalate or polyethylene terephthalate or their mixtures.
- the polymer when it is a styrene polymer, it may, for example, be polystyrene, styrene-butadiene (SB), polystyrene acrylonitrile (SAN), acrylonitrile butadiene styrene (ABS), or their copolymers or their mixtures.
- SB styrene-butadiene
- SAN polystyrene acrylonitrile
- ABS acrylonitrile butadiene styrene
- the polymer or copolymer is a polyolefin
- it can be chosen, for example, from polypropylene, polyethylene, ethylene / vinyl acetate copolymer (EVA) or their mixtures.
- EVA ethylene / vinyl acetate copolymer
- the polymer when it is thermosetting, it may be a polymer chosen from polyurethane, epoxy resins (such as araldite), polyester resins, phenolic resins (such as bakelite), or aminoplasts (such as formica ).
- thermoplastic polymers including thermoplastic elastomers
- the flame-retardant composition of the invention is added to thermoplastic polymers (including thermoplastic elastomers), it is incorporated by mixing, preferably in a single-screw or twin screw extruder.
- the mixture is extruded in the form of articles such as profiles or more advantageously in the form of rods which will be cut into granules.
- the granules are used in the processes for producing articles as a raw material and will be melted to supply the flame retardant composition in the forming processes such as injection molding, extrusion, blow molding or similar processes.
- the mixture can also comprise one or more additives usually used in this field.
- the total amount of flame-retardant composition according to the invention used varies between 1 to 50% relative to the total weight of the mixture obtained.
- the total amount of flame retardant composition is between 10 to 40% relative to the total weight of the mixture obtained. Even more preferably the total amount of flame retardant composition is between 15 to 30% relative to the total weight of the mixture obtained.
- the mineral oxide impregnated with liquid flame retardant When the mineral oxide impregnated with liquid flame retardant is incorporated into thermosetting polymers, the mineral oxide impregnated with liquid flame retardant and the other additives are incorporated into one of the monomers or oligomers before the polymerization or crosslinking reaction .
- the amounts of mineral oxide impregnated with liquid flame retardant used are in the same proportions as those described for thermoplastic polymers.
- Example 1 Preparation of a high porosity silica impregnated with ANTIBLAZE 1045
- the high porosity silica used is a silica called TIXOSIL 38A from the company RHODIA having a total pore volume of 4.2 ml / g and a useful volume of 2.2 ml / g.
- the amount of concentrated ANTIBLAZE used for the impregnation corresponds to the maximum amount that it is possible to impregnate on the silica, that is to say the volume for which the saturation of the silica is obtained.
- Impregnation is done dry.
- the ANTIBLAZE 1045 is added beforehand heated to 80 ° C in order to make it more fluid with a burette in doses of 25 ml drop by drop.
- the final product is therefore composed of 71.6% by weight of ANTIBLAZE 1045 and 28.4% of silica.
- Diameter (D50) of the particle size distribution is 250 ⁇ m.
- D50 in the field of powder particle size is the diameter or size of particles for which 50% by weight of the particles have a smaller diameter and 50% by weight have a larger diameter.
- the phosphorus content of this powder is 15%.
- the high porosity silica used is a silica called TIXOSIL 38X from the company RHODIA having a total pore volume of 3.6 ml / g and a useful pore volume of 2.0 ml / g. It is a Silica called Microperle which has an excellent flowability and which does not dust.
- silica 3.5 kg are weighed and introduced into a 20 liter LODIGE double jacket mixer.
- the silica is heated to 95 ° C (set temperature of the thermostatic bath equal to 135 ° C).
- the ANTIBLAZE 1045 was previously placed in an oven at 80 ° C overnight. It is then pumped into a jacketed jacketing thermostatically controlled at 99 ° C and introduced into the LODIGE without spraying (introduction rates: 45 min at 4.1 l / h and 1 H30 min at 1.9 l / h).
- the coulter speed in the log is 70 rpm.
- the total amount of ANTIBLAZE 1045 introduced into the silica is 6.696 kg (i.e.
- the final product is then sieved through a 1.25 mm sieve.
- the final product is therefore composed of 65.6% by weight of ANTIBLAZE 1045 and 34.4% of silica.
- the high porosity silica used is a silica called TIXOSIL 38A from the company RHODIA having a pore volume of 4.2 ml / g and a useful pore volume of 2.2 ml / g.
- the amount of concentrated FYROLFLEX BDP used for the impregnation corresponds to the maximum amount that it is possible to impregnate on the silica, ie the volume for which the saturation of the silica is obtained. Impregnation is done dry. FYROLFLEX BDP is added at room temperature with a burette in 25 ml doses dropwise. Weigh 25 grams of silica. The maximum volume reached impregnated is 50m! of FYROLFLEX RDP, i.e. 65 g.
- the final product is therefore composed of 72.2% by weight of FYROLFLEX BDP and 27.8% of silica.
- the phosphorus content of this powder is 7.6%.
- the high porosity silica used is a silica called TIXOSIL 38X from the company RHODIA having a total pore volume of 3.6 ml / g and a useful pore volume of 2.0 ml / g. It is a Silica called Microperle which has an excellent flowability and which does not dust.
- silica 3.5 kg are weighed and introduced into a 20 liter LODIGE double jacket mixer. The silica is heated to 95 ° C (set temperature of the thermostatic bath equal to 135 ° C).
- the ANTIBLAZE CU was previously placed in an oven at 80 ° C overnight. It is then pumped into a jacketed jacketed thermostatically controlled at 99 ° C and introduced into the l sansdige without spraying (introduction rates: 45 min at 4.1 l / h and 1 H 30 min at 1.9 l / h). The coulter speed in the log is 70 rpm.
- the total amount of ANTIBLAZE CU introduced into the silica is 6.696 kg (i.e.
- the final product is then sieved through a 1.25 mm sieve.
- the final product is therefore composed of 65.6% by weight of ANTIBLAZE CU and 34.4% of silica.
- the flame retardants obtained in Example 1 and in Example 2 are incorporated into a polymer matrix of polyamide 6 and polyamide 66 in a molten medium using a single or twin screw extruder.
- the mixture is generally extruded in the form of rods which are cut to obtain granules.
- These granules are used as a raw material for feeding the methods of manufacturing fireproof molded articles by injection, molding, extrusion blow molding or by any other method of shaping articles.
- the properties of these compositions are measured from test pieces obtained by injection of a polyamide composition additivated with the powder of Example 2 according to the procedure described below:
- a polyamide 6 composition comprising 20% glass fibers is extruded in a LEISTRITZ twin-screw extruder with a flow rate of between 6 and 7 kg / hour, by imposing a temperature profile of 250 ° C. on average, and a pressure in the area of degassing of approximately 400 mbar. The material pressure measured at the die is close to 8 bar.
- the product obtained at the end of the preparation described in Example 2 is added using a gravimetric powder metering device at a determined flow rate so as to obtain a rate of product in the polymer of 20% by weight per compared to the final composition.
- the rods obtained are cut into granules.
- the good flowability of the powder makes it possible to use standard dosing systems without any difficulty and especially without dusting. -Preparation of test pieces
- test specimens are obtained by injection under standard conditions, of the granules obtained above, on a 85 ton Billon press, with a cycle time of 40 seconds, a mold temperature of 80 ° C. and a temperature profile imposed on the 250 ° C sheath.
- a polyamide 66 composition comprising 20% glass fibers is extruded in a LEISTRITZ twin screw extruder with a flow rate of between 6 and 7 kg / hour, by imposing a temperature profile in the screw of 280 ° C. on average , and a pressure in the degassing zone of approximately 400 mbar. The material pressure measured at the die is close to 8 bar.
- the product of Example 2 is added in a first test and in a second test the product of Example 4, using a gravimetric powder metering device at a determined flow rate so as to obtain a product content in the polymer by 20% by mass relative to the final composition.
- the good flowability of the powder means that standard dosing systems can be used without any difficulty and above all without dusting.
- the rod obtained is cut into granules in the usual way.
- a polyamide 66 composition comprising 20% glass fibers is extruded in a LEISTRITZ twin screw extruder with a flow rate of between 6 and 7 kg / hour, by imposing a temperature profile in the screw of 280 ° C. on average , and a pressure in the degassing zone of approximately 400 mbar. The material pressure measured at the die is close to 8 bar.
- the product of Example 3 is added using a gravimetric powder metering device at a determined flow rate so as to obtain a product content in the polymer of 20% by mass relative to the final composition.
- the good flowability of the powder means that standard dosing systems can be used without any difficulty and above all without dusting.
- the rod obtained is cut into granules in the usual way.
- the fire behavior of the samples obtained above is determined according to the UL-94 test published by the “Underwriters Laboratories” described in standard ISO 1210: 1992 (F). This test is carried out with specimens of thickness 1.6 and 0.8 mm.
- test specimens obtained above are collated in Table I below.
- test specimens are conditioned by keeping for 48 hours at 23 ° C in an atmosphere with a relative humidity of 50%.
- Example 2 shows that the product obtained at the end of the preparation described in Example 2 gives the polyamide satisfactory flame retardant properties.
- a V0 classification is indeed obtained for a thickness of 1.6 mm for polyamide 66, and flame retardant performance significantly improved for polyamide 6 if it is compared to the same polyamide 6 tested without this additive.
- the flame retardant compositions with the powder of Example 3 could not be tested because it was impossible to produce correct test pieces.
- the polypropylene alone is kneaded for 3 minutes at 200 rpm at 155 ° C.
- the polypropylene alone is kneaded for 3 minutes at 200 rpm at 155 ° C. 20% by weight of the powder corresponding to Example 1 relative to the total weight of the mixture is then introduced into the mixer and the mixing is continued for 3 minutes.
- Pentaerythritol and Melamine in addition to the product corresponding to Example 1 in Polypropylene (Formula 1) gives a classification which remains correct (V2 against NC for Polypropylene alone) but at a higher total additive rate.
- Example 1 There is therefore an interest in the product corresponding to Example 1 as a flame retardant which significantly improves the fire retardancy performance of Polypropylene.
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- Health & Medical Sciences (AREA)
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Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/523,420 US7416780B2 (en) | 2002-08-02 | 2003-08-01 | Flame-retardant composition comprising organophosphorus compound impregnated on a porous support, preparation method and use thereof |
CNB038214466A CN1320067C (zh) | 2002-08-02 | 2003-08-01 | 防火剂组合物,该组合物的制备方法及其用途 |
BR0313365-6A BR0313365A (pt) | 2002-08-02 | 2003-08-01 | Composição com propriedade fogo-retardante, processo para a preparação da mesma e uso da composição |
CA2493622A CA2493622C (fr) | 2002-08-02 | 2003-08-01 | Composition ignifugeante, procede de preparation et utilisation de cette composition |
JP2004526965A JP4210259B2 (ja) | 2002-08-02 | 2003-08-01 | 難燃剤組成物、その製造及び使用 |
EP03758193A EP1525269A2 (fr) | 2002-08-02 | 2003-08-01 | Composition ignifugeante, procede de preparation et utilisation de cette composition |
AU2003274211A AU2003274211A1 (en) | 2002-08-02 | 2003-08-01 | Flame-retardant composition, preparation method and use thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0209886A FR2843122B1 (fr) | 2002-08-02 | 2002-08-02 | Nouvel agent ignifugeant a base d'un ignifugeant liquide impregne sur un oxyde mineral de grande porosite, son procede de preparation et son utilisation. |
FR02/09886 | 2002-08-02 | ||
FR03/07813 | 2003-06-27 | ||
FR0307813A FR2843121B3 (fr) | 2002-08-02 | 2003-06-27 | Agent ignifugeant, procede de preparation et l'utilisation de cet agent |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004015016A2 true WO2004015016A2 (fr) | 2004-02-19 |
WO2004015016A3 WO2004015016A3 (fr) | 2004-04-22 |
Family
ID=30445210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002444 WO2004015016A2 (fr) | 2002-08-02 | 2003-08-01 | Composition ignifugeante, procede de preparation et utilisation de cette composition |
Country Status (11)
Country | Link |
---|---|
US (1) | US7416780B2 (fr) |
EP (1) | EP1525269A2 (fr) |
JP (1) | JP4210259B2 (fr) |
KR (1) | KR100642963B1 (fr) |
CN (1) | CN1320067C (fr) |
AU (1) | AU2003274211A1 (fr) |
BR (1) | BR0313365A (fr) |
CA (1) | CA2493622C (fr) |
FR (1) | FR2843121B3 (fr) |
RU (1) | RU2292376C2 (fr) |
WO (1) | WO2004015016A2 (fr) |
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FR2856703A1 (fr) * | 2003-06-27 | 2004-12-31 | Rhodianyl | Fils, fibres, filaments en matiere synthetique ignifugee |
EP1960463A2 (fr) * | 2005-12-05 | 2008-08-27 | 3M Innovative Properties Company | Composition de polymère ignifuge |
US7847012B2 (en) * | 2006-06-06 | 2010-12-07 | Shin-Etsu Chemical Co., Ltd. | Vinyl chloride resin composition and molded article thereof |
CN102585567A (zh) * | 2012-01-05 | 2012-07-18 | 四川大学 | 一种超细无机粉体分散液的制备方法 |
US9017584B2 (en) * | 2006-10-30 | 2015-04-28 | Alan M. Gilbert | Flame-retardant materials and systems |
US9719019B1 (en) | 2006-10-30 | 2017-08-01 | Alan M. Gilbert | Flame-retardant materials and systems |
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US20080111114A1 (en) * | 2006-10-30 | 2008-05-15 | Gilbert Alan M | Flame-retardant materials and systems |
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JP2016540872A (ja) * | 2013-10-17 | 2016-12-28 | アーベー・ミッドナイト・ホールディング | 耐火性材料及び耐火性材料を得るための方法 |
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WO2016159103A1 (fr) * | 2015-03-30 | 2016-10-06 | 株式会社Adeka | Mélange maître photostabilisant et son procédé de fabrication |
EP3239229A1 (fr) * | 2016-04-28 | 2017-11-01 | Infingent AB | Composition ignifuge et son procédé de préparation |
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-
2003
- 2003-06-27 FR FR0307813A patent/FR2843121B3/fr not_active Expired - Lifetime
- 2003-08-01 WO PCT/FR2003/002444 patent/WO2004015016A2/fr active Application Filing
- 2003-08-01 BR BR0313365-6A patent/BR0313365A/pt active Search and Examination
- 2003-08-01 JP JP2004526965A patent/JP4210259B2/ja not_active Expired - Fee Related
- 2003-08-01 EP EP03758193A patent/EP1525269A2/fr not_active Withdrawn
- 2003-08-01 CN CNB038214466A patent/CN1320067C/zh not_active Expired - Fee Related
- 2003-08-01 KR KR1020057001955A patent/KR100642963B1/ko not_active IP Right Cessation
- 2003-08-01 US US10/523,420 patent/US7416780B2/en not_active Expired - Fee Related
- 2003-08-01 AU AU2003274211A patent/AU2003274211A1/en not_active Abandoned
- 2003-08-01 CA CA2493622A patent/CA2493622C/fr not_active Expired - Fee Related
- 2003-08-01 RU RU2005105694A patent/RU2292376C2/ru not_active IP Right Cessation
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2856703A1 (fr) * | 2003-06-27 | 2004-12-31 | Rhodianyl | Fils, fibres, filaments en matiere synthetique ignifugee |
WO2005001173A3 (fr) * | 2003-06-27 | 2005-04-07 | Rhodia Chimie Sa | Fils, fibres, filaments en matiere synthetique ignifugee |
EP1960463A2 (fr) * | 2005-12-05 | 2008-08-27 | 3M Innovative Properties Company | Composition de polymère ignifuge |
EP1960463A4 (fr) * | 2005-12-05 | 2010-09-29 | 3M Innovative Properties Co | Composition de polymère ignifuge |
US7847012B2 (en) * | 2006-06-06 | 2010-12-07 | Shin-Etsu Chemical Co., Ltd. | Vinyl chloride resin composition and molded article thereof |
US9017584B2 (en) * | 2006-10-30 | 2015-04-28 | Alan M. Gilbert | Flame-retardant materials and systems |
US9719019B1 (en) | 2006-10-30 | 2017-08-01 | Alan M. Gilbert | Flame-retardant materials and systems |
US10703975B2 (en) | 2006-10-30 | 2020-07-07 | Alan M. Gilbert | Flame-retardant materials and systems |
CN102585567A (zh) * | 2012-01-05 | 2012-07-18 | 四川大学 | 一种超细无机粉体分散液的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
US7416780B2 (en) | 2008-08-26 |
CA2493622C (fr) | 2010-04-13 |
KR100642963B1 (ko) | 2006-11-10 |
JP4210259B2 (ja) | 2009-01-14 |
JP2005534786A (ja) | 2005-11-17 |
AU2003274211A8 (en) | 2004-02-25 |
WO2004015016A3 (fr) | 2004-04-22 |
RU2005105694A (ru) | 2006-01-20 |
AU2003274211A1 (en) | 2004-02-25 |
KR20050027140A (ko) | 2005-03-17 |
RU2292376C2 (ru) | 2007-01-27 |
CA2493622A1 (fr) | 2004-02-19 |
FR2843121B3 (fr) | 2004-09-10 |
EP1525269A2 (fr) | 2005-04-27 |
CN1681896A (zh) | 2005-10-12 |
BR0313365A (pt) | 2005-06-07 |
CN1320067C (zh) | 2007-06-06 |
US20060100325A1 (en) | 2006-05-11 |
FR2843121A1 (fr) | 2004-02-06 |
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