The present invention is specifically directed to improved polyvinyl
chloride compositions having excellent impact strength. In particular, the
impact resistant composition comprises a vinyl chloride polymer and 2-8
parts of an impact modifier composition comprising at least one
ethylene/alpha-olefin copolymer and at least one chlorinated olefin
polymer per 100 parts of the vinyl chloride polymer. Preferably the impact
modifier composition comprises less than 1 part of the
ethylene/alpha-olefin copolymer and the ratio of said copolymer to the
total modifier composition is less than 25%.
