Polyimide polymers and copolymers using 3,5-diaminobenzotrifluor

Details Polyimide polymers and copolymers using 3,5-diaminobenzotrifluor Polyimide polymers and copolymers using 3,5-diaminobenzotrifluor

1988-06-28

1989-10-24

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528172, 528188, 528351, C08G 6926

Patent

active

048763292

ABSTRACT:
Partially soluble, film-forming polyimides and their copolymers made using 3,5-diaminobenzotrifluoride are described. Thin films and coatings of these materials are relatively colorless and the polymers have a high Tg, excellent thermal stability, lower moisture uptake, and lower dielectric constant. They are useful as films, fibers, molded articles and as protective coatings, interlevel dielectrics, electric circuit substrates and the like for the electronics industry.

REFERENCES:
patent: 4690999 (1987-09-01), Numata et al.

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