Stretched, laminated film

Details Stretched, laminated film Stretched, laminated film

1992-07-13

1993-12-28

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428220, 428483, 428516, 428349, 2641761, B32B 2708, B32B 2732, C08L 2310

Patent

active

052738116

ABSTRACT:
Disclosed herein is a stretched, laminated film comprising at least an outer layer, an intermediate layer and an inner layer,
said outer layer and inner layer comprising a polypropylenes composition composed of 100 parts by weight of polypropylenes (A), 2 to 30 parts by weight of polybutene and/or polyisobutylene (B) and 0.2 to 5 parts by weight of a polyglycerin fatty acid ester (C), and
said intermediate layer comprising polyesters (D).

REFERENCES:
patent: 2876187 (1959-03-01), Wolinski
patent: 4230767 (1980-10-01), Isaka et al.
patent: 4612221 (1986-09-01), Biel et al.
patent: 4629657 (1986-12-01), Gulati et al.
Database WPIL, Derwent Publications Ltd., London, GB; & JP-A-4 211 922 (Mitsubishi Kasei Corp.) *abstract*.

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