Abstract: Disclosed is a A-B-A type block copolymer wherein the A- block is an addition polymer and the -B- block is a linear saturated polyester containing two ##STR1## units.
Abstract: Disclosed is a liquid crystal copolyester having unobviously high mechanical properties. The copolyester is prepared from an aromatic dicarboxylic acid, a substituted phenylhydroquinone and optionally other hydroquinones.
Type:
Grant
Filed:
June 26, 1978
Date of Patent:
May 8, 1979
Assignee:
Eastman Kodak Company
Inventors:
Winston J. Jackson, Jr., Gary G. Gebeau, Herbert F. Kuhfuss
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