Polyimides and method for making

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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Details

528125, 528126, 528128, 528172, 528185, 528353, C08G 802

Patent

active

047694394

ABSTRACT:
Substantially transparent and flexible polyimide films are provided having reduced T.sub.g 's which result from the intercondensation of bisaminoformals and aromatic bis(anhydrides).

REFERENCES:
patent: 4526838 (1985-07-01), Fujioka et al.
patent: 4550156 (1985-10-01), Gallagher

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