Novel poly(imide-siloxane) block copolymers and process for thei

Details Novel poly(imide-siloxane) block copolymers and process for thei Novel poly(imide-siloxane) block copolymers and process for thei

1989-02-13

1991-07-02

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 26, 528 28, 525431, C08G 77388

Patent

active

050286811

ABSTRACT:
Novel poly(imide-siloxane) block copolymers and a process for their preparation are disclosed. The process of this invention involves reacting a hydroxy-terminated polyimide oligomer with a siloxane oligomer, which has reactive end groups capable of displacement by reaction with the hydroxyl groups of the hydroxy-terminated polyimide oligomer.

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