Method for making polyimide oligomers

Details Method for making polyimide oligomers Method for making polyimide oligomers

1985-09-30

1987-08-04

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

C08G 6926

Patent

active

046847146

ABSTRACT:
Polyimide oligomers are made by the condensation of suitable anhydrides, dianhydrides, and diamines. To a chilled solution of diamine, a mixture of anhydride and dianhydride is added under an inert atmosphere. The cooling is discontinued following the mixing, and the resulting three reactant mixture is allowed to react.

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