Patent ID: 8148472

Claim:
A polymer composition comprising a blend comprising (a) about 76 wt % (based upon the weight of the composition) of an amorphous cyclic olefin polymer having a T g between 60° C. and 76.6° C. and having a T m heat of fusion (ΔH f ) of 0.5 μg or less selected from the group consisting of: i) copolymers comprising at least one acyclic olefin and at least 20 mole ° A, of one or more cyclic olefins; (b) about 19 wt % (based upon the weight of the composition) of an acyclic olefin polymer modifier having a glass transition temperature of less than −40° C. wherein said acyclic olefin polymer comprises an elastomeric olefin/nonconjugated diene copolymer comprising an ethylene component, a propylene component and a nonconjugated diene component selected from the group consisting of norbornene ethylidene norbornene (ENB) vinyl norbornene (VNB), and alkyl norbornene; and (c) about 5 wt % (based upon the weight of the composition) a non-functionalized plasticizer having a kinematic viscosity at 100° C. of 10 to 40 cSt, a viscosity index of 130 to 150, a pour point of −48° C. or less and a flash point of 230° C. or more wherein the non-functionalized plasticizer is a polyalphaolefin having an M n 300 to 500 g/mol, and the polyalplaolefin comprises oligomers of one or more alpha-olefins selected from the group consisting of 1-hexene, 1-heptene, 1-octene, 1-nonene, and 1-decene, and blends thereof, and wherein the polymer composition has a −18° C. Izod Impact (forward notch) of from 42.7 to 64.9 J/m.