Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1992-11-12
1994-05-24
Sluby, P. C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428516, 428523, 525240, 525245, B32B 2708, C08F29708
Patent
active
053147464
ABSTRACT:
Tough, puncture- and tear-resistant films having a high degree of flexibility and softness are provided. The monolayer and multilayer films of the invention are obtained using copolymers of propylene with 8 to 40 weight percent ethylene produced by gas phase polymerization of the monomers in dual reactors. The films will have a 1% secant modulus from 5,000 psi to 70,000 psi. Melting points of these films are higher than that of low density polyethylene and, most generally, in the range 125.degree. C. to 160.degree. C.
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Bowen Paul E.
Edwards Michael B.
Johnson Lisa K.
Klimek Thaddeus W.
Baracka Gerald A.
Heidrich William A.
Quantum Chemical Corporation
Sluby P. C.
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