Biaxially oriented polyproylene film having a high surface modul

Details Biaxially oriented polyproylene film having a high surface modul Biaxially oriented polyproylene film having a high surface modul

1997-11-03

2000-06-06

Thibodeau, Paul

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428349, 428516, 428910, 428515, 5263481, 526351, 526943, 26417315, 2642902, B32B 2732, C08F 1006

Patent

active

060715987

ABSTRACT:
A biaxially oriented polypropylene film is described. The base ply of the film essentially consists of a polypropylene prepared by means of a metallocene catalyst. This polypropylene is distinguished by a mean isotactic block length of greater than 40, an n-heptane soluble fraction of less than 1% and a ratio of the weight average molecular weight M.sub.w to the number average molecular weight M.sub.n of less than 4.

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