Polymer compositions comprising cyclic olefin polymers, polyolefin modifiers and non-functionalized plasticizers

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 Tg greater than 60° C. and having a Tm heat of fusion (ΔHf) of 40 J/g or less selected from the group consisting of:
• i) copolymers comprising at least one acyclic olefin and at least 15 mole % of one or more cyclic olefins;
• ii) partially or completely hydrogenated copolymers comprising at least one acyclic olefin and at least 15 mole % of one or more cyclic olefins;
• iii) metathesis copolymers comprising two or more cyclic olefins;
• iv) partially or completely hydrogenated metathesis copolymers comprising two or more cyclic olefins;
• v) metathesis homopolymers comprising cyclic olefins;
• vi) partially or completely hydrogenated metathesis homopolymers comprising cyclic olefins;
• and
• vii) mixtures thereof;
• (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 0° C.;
• (c) about 5 wt % (based upon the weight of the composition) of a non-functionalized plasticizer having a kinematic viscosity at 100° C. of 3 to 3000 cSt, a viscosity index of 120 or more, a pour point of 0° C. or less and a flash point of 200° C. or more
• wherein the non-functionalized a plasticizer is a polyalphaolefin having an Mn 300 to 21,000 g/mol, and the polyalphaolefin 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.