Laminated film and packaging material

Details Laminated film and packaging material Laminated film and packaging material

1997-04-09

1999-06-15

Chen, Vivian

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428 357, 428213, 428215, 428480, 428483, 428515, 428516, 428520, 428522, 428523, 428910, B32B 2708, B32B 2730, B32B 2732, B32B 2736

Patent

active

059120703

ABSTRACT:
A laminated film superior in the heat resistance, shock resistance, moisture-barriering property and easy hand-tearability, which comprises one or more layers of a thermoplastic polyester resin (A), one or more layers of a resin based on cycloolefin (C) and one or more interposed layers of an adhesive (B) between layer (A) and layer (C), wherein the layer(s) of the thermoplastic polyester resin (A) and optionally the layer(s) of the resin based on cycloolefin (C) have been biaxially stretched and wherein the total thickness of the layer(s) of the thermoplastic polyester resin (A), the total thickness of the layer(s) of the adhesive (B) and the total thickness of the layer(s) based on cycloolefin (C) are 0.5-50 .mu.m, 0.5-20 .mu.m and 5-150 .mu.m, respectively.

REFERENCES:
patent: 5059487 (1991-10-01), Muro et al.
patent: 5187012 (1993-02-01), Takahashi et al.
patent: 5218049 (1993-06-01), Yamamoto et al.
patent: 5300352 (1994-04-01), Honma
patent: 5366812 (1994-11-01), Takahashi et al.
patent: 5532030 (1996-07-01), Hirose et al.
Database WPI, Section Ch, Week 8137, Derwent Publications, Ltd., London, GB; Class A17, AN 81-66691D & JP 56 092 058 A (Mitsubishi Petrochemical Co).
Schmitz, Peter et al., "Films." Ullmann's Encyclopedia of Industrial Chemistry, 5th Ed., vol. A11, pp. 85-86, 91-93, 105-106, 108-110, Jan. 1988.

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