Process for producing a polyimide solution

Details Process for producing a polyimide solution Process for producing a polyimide solution

1983-04-27

1985-04-16

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524738, 524741, 524879, C08G 7310, C08K 513, C08L 7908

Patent

active

045116814

ABSTRACT:
A transparent and homogeneous polyimide resin solution produced by a process in which a tetracarboxylic acid component and an aromatic diamine component are subjected to polymerization and imidization by one step at 100.degree. to 200.degree. C. by use of a halogenated phenolic compound as a solvent, permits the formation of a polyimide film excellent in mechanical properties.

REFERENCES:
patent: 3277043 (1966-10-01), Holub
patent: 3424718 (1969-01-01), Angelo
patent: 3441532 (1969-04-01), Victorius
patent: 3459706 (1969-08-01), Schweitzer
patent: 3692740 (1972-09-01), Suzuki
patent: 3726834 (1973-04-01), Acle
patent: 3954710 (1976-05-01), Bower
patent: 4290936 (1981-09-01), Sasaki et al.

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