Amide-imide copolymer moldings and method of preparation

Details Amide-imide copolymer moldings and method of preparation Amide-imide copolymer moldings and method of preparation

1974-12-30

1977-04-05

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 49, 260 63R, 260 78TF, 260857R, 264331, C08G 7314, B29F 500

Patent

active

040161404

ABSTRACT:
Copolymers of the amide-imide variety are made from a mixture of two or more largely- or wholly-aromatic primary diamines and an aromatic polycarboxylic-acid-anhydride derivative. A process for fabricating molded articles from these copolymers is described which comprises heat treating the copolymers from about 300.degree. to about 700.degree. F. and then applying a pressure of about 200 p.s.i. to about 30,000 p.s.i. to said partially cured material which has been preheated to a temperature within the range of about 200.degree. to about 750.degree. F. and subsequentlyejecting the coalesced polyamide-imide in the form of a shaped article.

REFERENCES:
patent: 3260691 (1966-07-01), Lavin et al.
patent: 3347828 (1967-10-01), Stephens et al.
patent: 3392144 (1968-07-01), Holub
patent: 3494890 (1970-02-01), Morello
patent: 3546152 (1970-12-01), Bolton
patent: 3573260 (1971-03-01), Morello

Affiliated with

Also associated with

Rating

Amide-imide copolymer moldings and method of preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amide-imide copolymer moldings and method of preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amide-imide copolymer moldings and method of preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2265410