Laminated polypropylene film

Details Laminated polypropylene film Laminated polypropylene film

1984-12-24

1987-06-23

Buffalow, Edith

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428500, 428516, 5263481, B32B 2700

Patent

active

046752471

ABSTRACT:
A laminated polypropylene film consisting of a crystalline polypropylene layer having laminated to at least one side thereof a copolymer layer, said copolymer being a random copolymer of propylene and an .alpha.-olefin having 4 or more carbon atoms or a random copolymer of propylene, an .alpha.-olefin having 4 or more carbon atoms and ethylene obtained by vapor phase polymerization in the substantial absence of a liquid medium and satisfying the following conditions (1) to (4):

REFERENCES:
patent: 3332921 (1967-07-01), Cleary
patent: 4252851 (1981-02-01), Lansbury
patent: 4294889 (1981-10-01), Hashimoto
patent: 4360650 (1982-11-01), Desvignes et al.
patent: 4410672 (1983-10-01), Inazawa
patent: 4464426 (1984-08-01), Anthony

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