Patent ID: 7026040
Filing Date: 2006-04-11
Classification: C08F,C08J,C08L,Y10T

Abstract:
1. A film comprising a crystalline propylene polymer composition comprising: (a) from 10 to 90 weight percent of a crystalline propylene homopolymer composition comprising a first propylene homopolymer and a second propylene homopolymer; and (b) from 90 to 10 weight percent of a crystalline propylene copolymer composition comprising a first propylene copolymer and a second propylene copolymer, the first propylene copolymer and second propylene copolymer comprising from 0.05 to 15 weight percent of a comonomer based on the total weight of the crystalline propylene polymer composition;  wherein the crystalline propylene polymer composition has a molecular weight distribution (Mw/Mn) in the range of from 2.1 to 10; and  wherein the propylene homopolymer composition and the propylene copolymer composition are obtained in separate stages using a single metallocene catalyst system comprising two different metallocene catalyst components.