Multiple-layer polyolefin films

Details Multiple-layer polyolefin films Multiple-layer polyolefin films

1989-05-08

1989-12-12

Buffalow, Edith

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428520, 428910, 428517, 15624416, B32B 2732

Patent

active

048866989

ABSTRACT:
A multiple-layer polyolefin film comprises a primary layer of an adhesive resin, such as an ethylene-vinyl acetate copolymer, and two secondary layers of an oriented propylene polymer, the thickness of the primary layer being less than 10% of the total film thickness.

REFERENCES:
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patent: 3853661 (1974-12-01), Sudo
patent: 4194039 (1980-03-01), Mueller
patent: 4279957 (1981-07-01), Hiraoka et al.
patent: 4333968 (1982-06-01), Nahmias
patent: 4352849 (1982-10-01), Mueller
patent: 4567089 (1986-01-01), Hattori et al.
patent: 4599276 (1986-07-01), Martini
patent: 4619859 (1986-10-01), Yoshimura et al.
EPO Search Report, EP 86 30 3484, dated Feb. 22, 1988.
Derwent Abstract, German DE 3340504A, No. 113.
Derwent Abstract, French Patent 2409858, No. 120.

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