Polyamic acid and polyimide from fluorinated reactant

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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528125, 528128, 528170, 528172, 528173, 528174, 528176, 528183, 528185, 528188, 528220, 528229, 528353, 524600, 525432, 525436, C08G 7310, C08G 6926

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active

054649277

ABSTRACT:
Copolyamic acid is obtained from tetracarboxylic acid dianhydride, diamine and a fluorinated diamine and/or fluorinated tetracarboxylic acid dianhydride; and optionally ester or amine salt derivative thereof to obtain radiation sensitive polymer; and low optical high thermally stable polyimide from curing the above polyamic acid and/or derivative thereof.

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