Patent ID: 6875820
Filing Date: 2005-04-05
Classification: C08L

Abstract:
1. An impact-resistant composition consisting essentially of a) a vinyl chloride polymer; b) 2-15 parts by weight of an impact modifier per 100 parts by weight vinyl chloride polymer, said impact modifier consisting of a randomly chlorinated olefin polymer having a chlorine content of from 15-39 percent by weight; said randomly chlorinated olefin polymer being prepared from an olefin polymer selected from the group consisting of i) polyethylene homopolymers having I 10 values of from 0.05-0.8 dg/minute and ii) copolymers of ethylene and up to 10 mole percent of a copolymerizable monomer, said copolymers having I 10 values of from 0.05-0.8 dg/minute; and wherein no more than 1 weight percent of a randomly chlorinated olefin polymer having a weight average molecular weight below 200,000 Daltons is present in the impact resistant composition; and c) 0 to 200 parts by weight of an additional polymeric component per 100 parts by weight of said impact modifier, wherein said additional polymeric component is selected from the group consisting of acrylonitrile butadiene styrene copolymers and acrylate polymers.