Patent ID: 7041765

Claim:
A film having at least one layer made from a polymer blend comprising at least one polymer (A) and at least one polymer (B), polymer (A) comprising at least 50 weight percent of the blend, and polymer (A) comprising at least about 60 weight percent of units derived from propylene and at least about 4 weight percent of units derived from a comonomer selected from the group consisting of ethylene and an unsaturated monomer other than ethylene, and polymer (A) is further characterized as having at least one of the following properties (i) 13 C NMR peaks corresponding to a regi or at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a DSC curve with a T mc that remains essentially the same and a T max that shifts to the left as the amount of comonomer in the copolymer is increased, and (iii) an X-ray diffraction pattern that exhibits more gamma-form crystals than a copolymer comparable in all respcts except that it is prepared with a Ziegler-Natta catalyst, and polymer (B) comprising a thermoplastic polymer other than polymer (A).