Polyolefine composition and polyolefine films prepared from the

Details Polyolefine composition and polyolefine films prepared from the Polyolefine composition and polyolefine films prepared from the

1997-05-30

1999-04-27

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525191, 525201, 525232, 525242, C08L 2304, C08F 800

Patent

active

058980504

ABSTRACT:
A polyolefine composition for preparing a polyolefine film having high heat-sealing properties. The polyolefine composition includes from about 2 percent to about 35 percent by weight of metallocene polyethylene or its copolymer and from about 65 percent to about 98 percent by weight of polypropylene or its copolymer. The metallocene polyethylene or its copolymer has a long chain branching index between 0 and 20/1000 carbons, a density between 0.880 g/cm.sup.3 and 0.915 g/cm.sup.3, a melting index between 0.5 g/10 min and 30 g/10 min, and a molecular weight distribution of less than 3.5. The polyolefine composition is fabricated into films by the blown film method or casting laminated method.

REFERENCES:
patent: 4871813 (1989-10-01), Senez

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