Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Patent
1993-06-30
1996-02-20
Clark, W. Robinson H.
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
428515, 428516, B32B 2708
Patent
active
054927676
ABSTRACT:
A laminated resin film having a thickness of from 7 to 25 .mu.m comprised of (A) a poly(4-methylpentene-1) resin layer having a thickness of from 1 to 10 .mu.m having laminated on one or both sides thereof (B) a crystalline propylene copolymer resin layer comprising from 1 to 10% by weight of ethylene, from 74 to 96% by weight of propylene, and from 3 to 25% by weight of an .alpha.-olefin containing from 4 to 8 carbon atoms and having a thickness of from 2 to 20 .mu.m, provided that the total thickness of layers (B) when provided on each side of layer (A) is in the range of from 4 to 20 .mu.m. The laminated film has excellent cutting properties and high heat resistance sufficient for use in microwave cooking.
REFERENCES:
patent: 4853490 (1989-08-01), Bosisio
patent: 5080979 (1992-01-01), Shigemoto et al.
patent: 5122415 (1992-06-01), Shinkel et al.
patent: 5296304 (1994-03-01), Yazaki et al.
Kobayashi Noriyuki
Matsui Takashi
Noro Masataka
Toyoda Mie
Yazaki Takao
Clark W. Robinson H.
Mitsubishi Chemical Corporation
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