Process for forming end-capped polyamic acids polyimides

Details Process for forming end-capped polyamic acids polyimides Process for forming end-capped polyamic acids polyimides

1989-05-26

1990-09-11

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528126, 528128, C08G 6926, C08G 802

Patent

active

049564501

ABSTRACT:
This invention discloses a process where a portion of an amine terminated polyamic acid intermediate is end-capped with an aromatic monoanhydride additionally substituted with a free carboxylic acid or ester thereof. The polyamic acids of this invention are readily converted to high molecular weight polyimides which may contain a small amount of amide groups.

REFERENCES:
patent: 3179630 (1965-04-01), Endrey
patent: 3179632 (1965-04-01), Hendrix
patent: 3234181 (1966-02-01), Olivier
patent: 3748311 (1973-07-01), Burns et al.
patent: 3772254 (1973-11-01), Jones et al.
patent: 3975363 (1976-08-01), Jones
patent: 4173700 (1979-11-01), Green et al.
patent: 4244853 (1981-01-01), Serafini et al.
patent: 4552931 (1985-11-01), St. Clair et al.
patent: 4742153 (1988-05-01), Sutton, Jr.

Affiliated with

Also associated with

Rating

Process for forming end-capped polyamic acids polyimides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for forming end-capped polyamic acids polyimides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for forming end-capped polyamic acids polyimides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1185584