Polyester raw material, and film produced therefrom

Details Polyester raw material, and film produced therefrom Polyester raw material, and film produced therefrom

1994-04-15

1995-12-26

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428323, 428327, 428329, 428330, 428331, 428480, B32B 702

Patent

active

054786320

ABSTRACT:
The invention describes a novel polyester raw material and the production and use of an oriented, single- or multilayer film having an overall thickness of .ltoreq.4 .mu.m and a roughness on at least one film surface of R.sub.a <30 nm, where the surface gas-flow resistance on at least one film surface is

REFERENCES:
patent: 3980611 (1976-09-01), Anderson et al.
patent: 5316714 (1994-05-01), Yoneda et al.
Chemical Abstracts, vol. 110, No. 16, Apr. 17, 1989, abstract of JP-A-63 235 336, published Sep. 30, 1988.
Chemical Abstracts, vol. 110, No. 14, Apr. 3, 1989, abstract of JP-A-63 238136, published Oct. 4, 1988.

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