Polyimides, process for the preparation thereof and polyimide re

Details Polyimides, process for the preparation thereof and polyimide re Polyimides, process for the preparation thereof and polyimide re

1993-10-29

1995-01-10

Carrillo, Ana L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, 525436, 525537, C08L 7908

Patent

active

053808053

ABSTRACT:
In one aspect, the present invention relates to polyimides having excellent thermal resistance and process for preparing the same comprising carrying out condensation of 4,4'-bis(3-aminophenoxy)biphenyl with pyromellitic dianhydride in the presence of a different diamine compound and optionally with a different tetracarboxylic acid dianhydride.
In a second aspect, the present invention relates to a heat resistant resin composition consisting essentially of an aromatic polyetherimide and a defined polyimide.
In a third aspect, the present invention relates to a polyimide resin composition comprised on a defined polyimide and a separate high-temperature engineering polymer.
In a fourth aspect, the present invention relates to a resin composition comprised of a defined polyimide and an aromatic polyamideimide.

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Sampe Journal, Jul/Aug. 1988, "Adhesive Properties of LARC-CPI, a New Semi-Journal of Polymer Science", Polymer Chemistry Edition, vol. 15, 1977, pp. 13-19.

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