Patent ID: 8859678

Claim:
A thermoplastic composition consisting of: at least one thermoplastic matrix selected from the group consisting of polyvinyl chloride, ABS, ASA terpolymer, polycarbonate-polyester, polycarbonate-ABS, polycarbonate-ASA, and a blend of two or more of these; and at least one copolymer obtained by copolymerizing a C 1 -C 4 alkyl methacrylate with a C 1 -C 8 alkyl acrylate comonomer and a styrene monomer, the C 1 -C 4 alkyl methacrylate being present in an amount ranging from 75% to 92% by weight relative to the total weight of the monomers of said copolymer, the C 1 -C 8 alkyl acrylate comonomer being present in an amount ranging from 5 to 20% by weight relative to the total weight of the monomers of said copolymer and the styrene monomer being present in an amount ranging from 3 to 12% by weight relative to the total weight of the monomers of said copolymer, wherein the total copolymer represents from 5% to 12% by weight relative to the total weight of the thermoplastic composition, and wherein each said copolymer has a weight average molecular weight M w from 2 million to 10 million; and optionally one or more additives selected from the group consisting of heat stabilizers, lubricants, mineral fillers, pigments, flame retardants, and blowing agents.