Multiple-layer polyolefin films

Details Multiple-layer polyolefin films Multiple-layer polyolefin films

1992-01-31

1993-04-20

Davis, Jenna L.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428354, 428355, 428518, 427208, C09J 702

Patent

active

052041808

ABSTRACT:
A multiple-layer film comprises an oriented propylene polymer substrate having on opposed surfaces thereof, respectively, a first vinylidene halide copolymer having a Tg of up to 25.degree. C. and a molecular weight not exceeding 135,000 and a second vinylidene halide copolymer having a Tg greater than that of the first copolymer.
Such films offer excellent sealing profile, blocking resistance, gas-barrier, humid ageing and printing characteristics.

REFERENCES:
patent: 4320175 (1982-03-01), Hisazumi
patent: 4495027 (1985-01-01), Wagner
patent: 4565743 (1986-01-01), Akao
patent: 4631235 (1986-12-01), Biale
patent: 4681803 (1987-07-01), Liu
patent: 5019447 (1991-05-01), Keller
patent: 5030511 (1991-06-01), Moffitt

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