Preparation of an aromatic polyimide acid by solution polymeriza

Details Preparation of an aromatic polyimide acid by solution polymeriza Preparation of an aromatic polyimide acid by solution polymeriza

1984-08-20

1985-06-18

Lee, Lester L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524378, 524600, 528125, 528126, 528128, 528179, 528188, 528208, 528222, 528229, 528353, C08L 7908

Patent

active

045241716

ABSTRACT:
A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of propylene glycol methyl ether.

REFERENCES:
patent: 4065345 (1977-12-01), Progar et al.
patent: 4115341 (1978-09-01), Boldebuck et al.
patent: 4181641 (1980-01-01), Boldebuck et al.
patent: 4255471 (1981-03-01), Boldebuck et al.
patent: 4332708 (1982-06-01), Boldebuck et al.
patent: 4382126 (1983-05-01), Boldebuck et al.

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