Semicrystalline propylene polymer compositions with good suitability for producing biaxially oriented films
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United States of America Patent
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Jul 15, 2003
Grant Date -
Jun 21, 2001
app pub date -
Dec 18, 2000
filing date -
Dec 21, 1999
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Abstract
A semicrystalline propylene polymer composition with good suitability for producing biaxially oriented films and prepared by polymerizing propylene, ethylene and/or C.sub.4 -C.sub.18 -1-alkenes, where at least 50 mol % of the monomer units present arise from the polymerization of propylene. Also described is the use of the semicrystalline propylene polymer composition for producing films, fibers or moldings, the films, fibers and moldings made from these compositions, biaxially stretched films made from the semicrystalline propylene polymer compositions, and also a method for characterizing the semicrystalline propylene polymer compositions.
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