Polyimides and polyimide-amides

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

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428458, 4284735, 4284744, 528125, 528128, 528172, 528189, 528206, 528208, 528220, 528229, 528352, 528353, C08G 7310, C08G 7314

Patent

active

044170459

ABSTRACT:
Novel polyimides and polyimides-amides, and molding compositions are prepared from novel dianhydrides such as tricyclo[6.4.0.0.sup.2,7 ] dodecane-3,6-diphenyl-1,8,4,5-tetracarboxylic acid dianhydride and tricyclo [6.4.0.0.sup.2,7 ] dodecane-1,8,4,5-tetracarboxylic acid dianhydride, dicarboxylic acids and diamines. The novel polyimides and polyimides-amides are useful as engineering plastics.

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patent: 3503998 (1970-03-01), Schuller et al.
patent: 4358580 (1982-11-01), Nimry et al.
patent: 4358582 (1982-11-01), Nimry et al.
patent: 4360657 (1982-11-01), Nimry et al.

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