Patent ID: 7217768

Claim:
A paintable impact copolymer composition comprising: a continuous phase comprising a propylene homopolymer and a discontinuous phase comprising an ethylene-propylene rubber; said impact copolymer composition having from about 5 wt. % to about 50 wt. % of a xylene-soluble portion and from about 50 wt. % to about 95 wt. % of a xylene-insoluble portion; wherein the ratio of the weight average molecular weight of said xylene-soluble portion to that of said xylene-insoluble portion is from about 0.5 to about 1.8; the intrinsic viscosity of said xylene-soluble portion is from about 0.5 to about 7.0 dL/g; and said xylene-soluble portion comprising from about 30 to about 70 mole percent ethylene units; wherein from about 5 to about 40 mole percent of said ethylene units in said xylene-soluble portion exist in triads; said impact copolymer composition being produced by in-reactor blending.