Patent ID: 8536292
Filing Date: 2013-09-17
Classification: C08F,C08L

Abstract:
1. A process for manufacture of a thermoplastic material for use in the manufacture of plastics, comprising the step of combining: (a) at least one thermoplastic resin selected from halogenated resins, polyvinyl chloride (PVC), post-chlorinated vinyl polychloride (PVCC), vinylidene polyfluoride (PVDF), styrenic resins, styrene-butadiene copolymers, styrene-acrylonitrile resins, acrylate-butadiene-styrene resins, methylmethacrylate styrene copolymers, acrylic resins, methyl polymethacrylate, polylenes, polypropylenes, polycarbonate resins, unsaturated polyester resins, terephthalate polyethylene, terephthalate polybutylenes, polyurethane resins, polyamide resins, or a mixture thereof, (b) at least one mineral or carbonated filler, and (c) optionally at least one other additive chosen from a thermal stabiliser and/or a UV stabiliser and/or a lubricant and/or a rheology modifier and/or an organic impact modifier, wherein at least one comb polymer, containing at least one polyalkylene oxide function grafted onto at least one ethylenic unsaturated monomer, is introduced into the thermoplastic resin, the mineral or carbonated filler, the at least one other additive, or the thermoplastic material, to improve the impact resistance of the thermoplastic material, wherein the comb polymer comprises: (a) at least one anionic monomer with a carboxylic or dicarboxylic or phosphoric or phosphonic or sulphonic function, or their mixtures, (b) at least one non-ionic monomer, where the non-ionic monomer consists of at least one monomer of formula (I): where: m and p represent a number of alkylene oxide units of less than or equal to 150, n represents a number of ethylene oxide units of less than or equal to 150, q represents an integer at least equal to 1 and such that 5≦(m+n+p)q≦150, R R R represents a radical containing an unsaturated polymerisable function, chosen from vinylics, acrylic, methacrylic, maleic, itaconic, crotonic, vinylphthalic esters, or unsaturated urethanes, acrylurethane, methacrylurethane, α-α′ dimethyl-isopropenyl-benzylurethane, allylurethane, or allylic or vinylic ethers, whether or not substituted, or ethylenically unsaturated amides or imides, R′ represents hydrogen or a hydrocarbonated radical having 1 to 40 carbon atoms, or an ionic or ionisable grouping chosen from a phosphate, a phosphonate, a sulphate, a sulphonate, a carboxylic, or a primary, secondary or tertiary amine, or a quaternary ammonium, or mixtures, or a mixture of several monomers of formula (I), (c) optionally at least one monomer of the acrylamide or methacrylamide type, N-[3-(dimethylamino)propyl]acrylamide or N-[3-(dimethylamino)propyl]methacrylamide, and their mixtures, or at least one non-water soluble monomer chosen from alkyl acrylates or methacrylates, the unsaturated esters, N-[2-(dimethylamino)ethyl]methacrylate, or N-[2-(dimethylamino)ethyl]acrylate, vinylics, vinyl acetate, vinylpyrrolidone, styrene, alphamethylstyrene, and their derivates, or at least one cationic monomer or quaternary ammonium, [2-(methacryloyloxy)ethyl]trimethyl ammonium chloride or sulphate, [2-(acryloyloxy)ethyl]trimethyl ammonium chloride or sulphate, [3-(acrylamido)propyl]trimethyl ammonium chloride or sulphate, dimethyl diallyl ammonium chloride or sulphate, [3-(methacrylamido)propyl]trimethyl ammonium chloride or sulphate, or mixtures thereof, and (d) optionally at least one monomer having at least two ethylenic unsaturations.