Films of wholly aromatic polyester and processes for...

C - Chemistry – Metallurgy – 08 – G

Patent

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18/103, 402/196

C08G 63/60 (2006.01) C08J 5/18 (2006.01) C09K 19/38 (2006.01)

Patent

CA 1323132

37 FILMS OF WHOLLY AROMATIC POLYESTER AND PROCESSES FOR PREPARATION THEREOF Abstract of the Disclosure 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.

586483

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