Films of wholly aromatic polyester and processes for preparation

Details Films of wholly aromatic polyester and processes for preparation Films of wholly aromatic polyester and processes for preparation

1988-12-16

1990-07-17

Anderson, Harold D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428480, 528190, 528193, 528194, C08G 6302, C08G 6908, B32B 2736

Patent

active

049420879

ABSTRACT:
Disclosed herein are (1) a film of a liquid crystalline wholly aromatic polyester which is non-oriented and transparent, which film can be prepared by dissolving a liquid crystalline wholly aromatic polyester in a solvent, casting the resulting solution to form a film and volatirizing the solvent from the film as cast and (2) a film of a liquid crystalline wholly aromatic polyester which is oriented and polarizing, which film can be prepared by orienting the above-mentioned non-oriented film by drawing or heating.

REFERENCES:
patent: 4609720 (1986-09-01), Yoshimura et al.

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