Polymer films
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United States of America Patent
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Dec 25, 2012
Grant Date -
Sep 17, 2009
app pub date -
Mar 6, 2007
filing date -
Mar 14, 2006
priority date (Note) -
Expired
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Abstract
Method for the preparation of a blown film containing 300-600 gels/m2 of size in the range 100-2000 μm as measured by an optical control system, in which the film is derived by extrusion from an ethylene-α-olefin copolymer. The method is carried out by preparing the copolymer in a particle forming polymerization process in the presence of a single site catalyst system containing a single site catalyst, a cocatalyst, and a support material.
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