Patent ID: 7807769

Claim:
An isotactic propylene homopolymer having: more than 15 and less than 100 regio defects (sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations) per 10,000 propylene units; an Mw (weight average molecular weight) of 35,000 g/mol or more; a peak melting temperature of greater than 149° C.; an mmmm pentad fraction of 0.85 or more; a heat of fusion of 80 J/g or more; and a Tmp−Tcp≦(0.907×Tmp)−99.64, as measured in ° C. on the homopolymer having 0 wt % nucleating agent, wherein Tmp is the peak melting temperature and Tcp is the peak crystallization temperature.