Heat sealable packaging film comprising propylene polymer substr

Details Heat sealable packaging film comprising propylene polymer substr Heat sealable packaging film comprising propylene polymer substr

1980-11-03

1982-07-20

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428516, 428523, 5263486, B32B 2700

Patent

active

043406416

ABSTRACT:
Multiple layer, heat sealable films are described comprising a substrate layer of polypropylene homopolymers or copolymers, or blends thereof with compatible polyolefins, and at least one heat sealable surface layer of a blend of a copolymer of ethylene and a higher olefin, and a copolymer of propylene and a higher olefin. The films are prepared by extrusion coating or coextrusion and can be oriented.

REFERENCES:
patent: 4205021 (1980-05-01), Morita et al.
patent: 4297411 (1981-10-01), Weiner

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