Multi-layered film

Details Multi-layered film Multi-layered film

1996-03-19

1999-03-09

Chen, Vivian

Stock material or miscellaneous articles

Composite

Of polyester

428480, 428523, 428704, 428910, 524154, B32B 706, B32B 2708, B32B 2732, B32B 2736

Patent

active

058798137

ABSTRACT:
A multi-layered film comprises a polyolefin first layer and at least one second layer composed of polyester or polyphenylene sulfide adjacent to the polyolefin layer, said polyolefin first layer containing 0.001 to 1% by weight of a quaternary phosphonium salt of sulfonic acid, and wherein the adhesion between the polyolefin first layer and the at least one second layer is 0.1 to 20 g/cm. A single-layer film composed of either the polyolefin first layer or the second layer can be readily peeled off the multi-layered film and casting of a highly uniform multi-layered film can be carried out at high speed.

REFERENCES:
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patent: 4594203 (1986-06-01), Hagiwara et al.
patent: 4767654 (1988-08-01), Riggsbee
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patent: 5021473 (1991-06-01), Macholdt et al.
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patent: 5385805 (1995-01-01), Leenders et al.
patent: 5409772 (1995-04-01), Yabusa et al.
patent: 5449709 (1995-09-01), Imae et al.
Schmitz, Peter et al., "Films." Ullmann's Encyclopedia of Industrial Chemistry, 5th Ed., vol. A11, pp. 85-110, 1988.
Abstract of Jap. Laid-Open Pat. Appln. Publ. No. 1-62335 (Mar. 8, 1989).
Abstract of Jap. Laid-Open Pat. Appln. Publ. No. 52-37982 (Mar. 24, 1977).

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