Polyamic acid and polyimide from fluorinated reactant

Details Polyamic acid and polyimide from fluorinated reactant Polyamic acid and polyimide from fluorinated reactant

1993-05-10

1995-11-07

Hampton-Hightower, P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

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

Patent

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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