Polypropylene film

Details Polypropylene film Polypropylene film

1992-03-03

1993-12-07

Seccuro, Jr., Carman J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

525240, 524528, C08J 518, C08L 2310

Patent

active

052682200

ABSTRACT:
The present invention provides a polypropylene film having high transparency and heat-sealability and superior in the balance between stiffness (tensile modulus) and impact resistance which polypropylene film comprises a) 80-99.5% by weight of a propylene polymer and b) 0.5-20% by weight of an ethylene/.alpha.-olefin copolymer prepared by the copolymerization of ethylene and an .alpha.-olefin having a 3 to 12 carbon atoms, said ethylene/.alpha.-olefin copolymer satisfying the following conditions (i) to (iii):

REFERENCES:
patent: 4720427 (1988-01-01), Clauson et al.
patent: 4732940 (1988-03-01), Yamaoka et al.
patent: 4742106 (1988-05-01), Kamiya et al.
patent: 4748206 (1988-05-01), Nowiga et al.
patent: 4764404 (1988-08-01), Genski et al.
patent: 4769283 (1988-09-01), Sipinen et al.
patent: 4778697 (1988-10-01), Genski
patent: 4812526 (1989-03-01), Rifi

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