Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1988-11-30
1990-11-27
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528208, 528344, 528348, C08G 6926
Patent
active
049736590
ABSTRACT:
Resinous condensation polymers of polycarboxylic acid compounds and aromatic diprimary amines comprising diamino-t-butylbenzenes are described. In particular, film-forming polyamides, polyimides and polyamide-imides and their copolymers made using diamono-t-butylbenzenes which have amino groups meta or para to each other on a benzene ring are described. These polymers have some solubility in organic solvents such as N-methylpyrrolidone, a high glass transition temperature, excellent thermal stability, and are useful in films, fibers and composites, and in the electronics industry as electrical component substrates, protective coatings, interlevel dielectrics and the like.
REFERENCES:
patent: 4245066 (1981-01-01), Nakagawa et al.
Fenoglio David J.
Fjare Douglas E.
Melquist John L.
Morello Edwin F.
Nowicki Neal R.
Amoco Corporation
Anderson Harold D.
Jerome Frederick S.
Magidson William H.
Medhurst Ralph C.
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