Patent ID: 6673868
Filing Date: 2004-01-06
Classification: C08F,C08L

Abstract:
A polymeric composition, comprising:(A) 100 parts by weight of an acrylic core-shell graft-co-polymer, comprising (i) from 20% to 70% by weight of an acrylic rubbery core polymer, based on the total weight of the acrylic core-shell graft-co-polymer and (ii) from 30% to 80% by weight of an acrylic hard shell polymer, based on the total weight of the acrylic core-shell graft-co-polymer wherein the acrylic hard shell polymer contains 80 to 99 parts by weight of units derived from at least one C1-C8 alkyl methacrylate monomer, based on 100 parts by weight of the acrylic hard shell polymer; (B) based on 100 parts by weight of the acrylic core-shell polymer, from 1 to 40 parts by weight of a processing aid polymer, wherein the weight average molecular weight of the processing aid polymer is greater than 1 million g/mol and (C) based on 100 parts by weight of the acrylic core-shell polymer, from 0.1 to 10 parts by weight of a VA lubricating copolymer, comprising (i) from 20% to 70% by weight of polymerizable units derived from one or more vinyl aromatic monomers, based on the total weight of the VA lubricating copolymer and (ii) from 30% to 80% by weight of polymerizable units derived from one or more ethylenically unsaturated monomers based on the total weight of the VA lubricating copolymer, wherein the weight average molecular weight of the VA lubricating polymer is in the range of from 20,000 g/mol to 1 million g/mol.