Polyimide coating compositions based on meta-dialkyldihydrogen p

Details Polyimide coating compositions based on meta-dialkyldihydrogen p Polyimide coating compositions based on meta-dialkyldihydrogen p

1988-04-19

1989-07-18

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528351, 524252, 4273855, C08G 6926

Patent

active

048495018

ABSTRACT:
A composition for the application of a planar polyimide coating having a glass transition temperature above 300.degree. C. comprises a solution in an anhydrous, aprotic solvent of an aromatic diamine and a dialkyldihydrogen pyromellitate which is more than 90% meta isomer.

REFERENCES:
patent: 2880230 (1959-03-01), Edwards et al.
patent: 4533574 (1985-08-01), Fryd et al.
patent: 4562100 (1985-12-01), Fryd et al.

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