Solutions of polyimide-forming starting materials

Details Solutions of polyimide-forming starting materials Solutions of polyimide-forming starting materials

1992-11-02

1993-11-23

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528128, 528170, 528172, 528173, 528176, 528185, 528188, 528220, 528229, 528350, 524379, 524391, 524600, 524606, 524607, C08G 6926, C08G 7310

Patent

active

052645452

ABSTRACT:
Solutions of polyimide-forming starting materials are provided containing diamines and tetracarboxylic diesters; the tetracarboxylic diesters comprise a mixture of from 0.05 to 0.95 mol % of oxydiphthalic diesters and from 0.05 to 0.95 mol % of benzophenonetetracarboxylic diesters, biphenyltetracarboxylic diesters or mixtures thereof.

REFERENCES:
patent: 3700649 (1972-10-01), Boram et al.
patent: 4874835 (1989-10-01), Berdahl
patent: 4960824 (1990-10-01), Olson et al.

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