Patent ID: 8664320

Claim:
A method for making a film composition, comprising: admixing one or more propylene-based polymers, one or more miscible hydrocarbon resins, and one or more styrenic block copolymers in an amount sufficient to form a blend which provides a film having an increase in intrinsic tear by at least 5% as compared to a film formed from the propylene-based polymers alone, wherein the blend comprises at least 55 wt % of the one or more propylene-based polymers, based on the weight of the blend, wherein the propylene-based polymers have (i) 60 wt % or more units derived from propylene, (ii) isotactically arranged propylene derived sequences, (iii) a heat of fusion less than 45 J/g, and (iv) a melting point of equal to or less than 100° C.; and wherein the hydrocarbon resins have a glass transition temperature greater than 20° C.