Process for making polyamic esters

Details Process for making polyamic esters Process for making polyamic esters

1992-04-29

1995-05-30

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528220, 528229, 528271, 528272, 528274, 528332, 528335, 528336, 528350, 528351, C08G 7310

Patent

active

054202329

ABSTRACT:
The present invention relates to an improved process for making polyamic ester comprising reacting an aromatic diester diacid halide with the monohydrohalide salt of an aromatic diamine in the presence of a base. The polyamic ester can be imidized to form a polyimide suitable for use in electronic components.

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CA 116(10): 84577t; Mar. 9, 1992, Kim et al.

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