Patent ID: 7893161
Filing Date: 2011-02-22
Classification: C08L

Abstract:
1. A polyolefin elastomeric composition, the composition consisting essentially of: (a) a propylene-based elastomer having at least seventy five weight percent (75 wt %) units derived from propylene and from ten to twenty five weight percent (10-25 wt %) units derived from a C2, or a C4-C10 alpha olefin, the propylene-based elastomer exhibiting: (b) a homogeneous ethylene-alpha olefin interpolymer selected from a substantially linear polyethylene and a homogeneously branched linear polyethylene having a molecular weight distribution (Mw/Mn) of less than 3.5, a density from 0.885 to 0.915 g/ml, and a heat of fusion of from 65 to 125 Joules/gram, wherein the weight ratio of the propylene-based elastomer to the homogeneous ethylene-alpha olefin interpolymer is from 97:3 to 80:20, and wherein the composition exhibits a heat of fusion from 2 to 55 Joules/gram, and a 2% secant flexural modulus of less than 69 MPa.