Patent ID: 7652093

Claim:
A plasticized impact copolymer composition comprising: (I) 1 to 40 wt % (based upon the weight of the non-functionalized plasticizers and the impact copolymer) of one or more non-functionalized plasticizers (“NFP”) where the NFP comprises C 20 to C 1500 paraffins having a kinematic viscosity at 100° C. of 10 cSt or more, a specific gravity of 0.700 to 0.860, a viscosity index of 120 or more, and a pour point of less than −10° C.; and (II) 40 to 99 wt % (based upon the weight of the non-functionalized plasticizers and the impact copolymer) of a propylene impact copolymer (“ICP”), said ICP comprising (A) 40 to 95 wt % propylene homopolymer or copolymer (based upon the total weight of the ICP) where said copolymer comprises 10 wt % or less of ethylene, butene, hexene or octene comonomer, and (B) from 5 to 60 wt % (based upon the total weight of the ICP) of a propylene copolymer consisting essentially of from 5 to 70 wt % of ethylene, butene, hexene and/or octene comonomer and 30 to 95 wt % propylene, and wherein polyethylene homopolymer and copolymer having a weight average molecular weight of from 500 to 10,000 is substantially absent from the composition, and wherein the 1% Secant flexural modulus of the ICP is from 300 to 2300 MPa and the Gardner impact strength of the ICP at −29° C. is from 20 to 1000 in-lb.