Chemically cured low temperature polyimides

Details Chemically cured low temperature polyimides Chemically cured low temperature polyimides

1991-01-25

1993-09-28

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528 45, 528 48, 528 50, 528125, 528126, 528128, 528129, 528170, 528173, 528179, 528183, 528185, 528188, 528189, 528220, 528222, 528229, 528342, 528351, 427379, 4273855, C08G 6926, C08G 7310

Patent

active

052487601

ABSTRACT:
The invention comprises curing polyamic acid solutions into polyimide solutions by adding a hydrophilic reagent to a polyamic acid solution. The hydrophilic reagent is selected to have little or no reactivity with amines or carboxylic acids, and is of the type that will react with water to form by-products that shift the equilibrium between polyamic acid as a reactant and polyimide and water as products toward the production of polyimide.

REFERENCES:
patent: 3511728 (1970-05-01), Freedman et al.
patent: 3528950 (1970-09-01), Lubowitz
patent: 3666723 (1972-05-01), Kray et al.
patent: 3715293 (1973-02-01), Sandner et al.
patent: 3801329 (1974-04-01), Sandner et al.
patent: 3839529 (1974-10-01), Serres et al.
patent: 3846269 (1974-11-01), Martello et al.
patent: 3894330 (1975-07-01), Bellis
patent: 4019877 (1977-04-01), Gass et al.
patent: 4110294 (1978-08-01), Pickering
patent: 4129570 (1978-12-01), Bilow et al.
patent: 4238528 (1980-12-01), Angelo et al.
patent: 4338430 (1982-07-01), Edelman
patent: 4468411 (1984-08-01), Sloan et al.
patent: 4496711 (1985-01-01), Landis
patent: 4511705 (1985-04-01), Makino et al.
patent: 4590258 (1986-05-01), Linde et al.
patent: 4595548 (1986-06-01), St. Clair et al.
patent: 4603061 (1986-07-01), St. Clair et al.
patent: 4643910 (1987-02-01), Foutz
patent: 4645688 (1987-02-01), Makino et al.
patent: 4656235 (1987-04-01), Tesoro et al.
patent: 4749621 (1988-06-01), Araps et al.
patent: 4871619 (1989-10-01), Araps et al.
patent: 4879182 (1989-11-01), Presswood et al.
patent: 4898753 (1990-02-01), Inoue et al.
patent: 4931310 (1990-06-01), Anschel et al.
patent: 4954601 (1990-09-01), King
patent: 4963635 (1990-10-01), Kunimune et al.

Affiliated with

Also associated with

Rating

Chemically cured low temperature 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 Chemically cured low temperature polyimides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemically cured low temperature polyimides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2191771