Inventors:
Mahendra T. Thakker - Odessa TX
Dharmendra Jani - Odessa TX
Assignee:
Huntsman Polymers Corporation - Odessa TX
International Classification:
B32B 2732
Abstract:
Multi-layer film products comprising an inner or core layer made from polyolefin polymers produced by polymerizing an. alpha. -olefin in the presence of a catalyst including: a pro-catalyst having a magnesium halide; an aluminum halide; a tetravalent titanium halide, ;an electron donor; and a silane having the formula R. sub. 1 R. sub. 2 Si(OR. sub. 3)(OR. sub. 4), wherein R. sub. 1 and R. sub. 2 are each an H, C. sub. 1-6 alkyl, aryl, C. sub. 5-12 cycloalkyl, each of which may be unsubstituted, mono- or di-substituted, and R. sub. 3 and R. sub. 4 are H, C. sub. 1-6 alkyl, or a mono- or di-substituted C. sub. 1-6 alkyl; and a co-catalyst comprising an organometallic compound, or reaction products of the pro-catalyst and the co-catalyst. The film products have excellent clarity, superior dart impact, resistance to tear and favorable sealibility characteristics.