Highly-soluble, amorphous siloxane polyimides

Details Highly-soluble, amorphous siloxane polyimides Highly-soluble, amorphous siloxane polyimides

1989-03-06

1990-06-05

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528126, 528128, 528176, 528188, 528229, C08G 6926

Patent

active

049315390

ABSTRACT:
Highly-soluble, fully-cyclized siloxane polyimides, which contain at least in part, polymerized units derived from 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl) ethylidene]-bis(1,2-benzenedicarboxylic acid anhydride), (6FDA), are disclosed. The polymeric compositions, their preparation and film/coating products are described.

REFERENCES:
patent: 3274155 (1966-09-01), Saunders et al.
patent: 3598784 (1971-08-01), Holub et al.
patent: 4395527 (1983-07-01), Berger
patent: 4480009 (1984-10-01), Berger
patent: 4558110 (1985-12-01), Lee
patent: 4586997 (1986-05-01), Lee
patent: 4652598 (1987-03-01), Edelman
patent: 4808686 (1989-02-01), Cella et a.

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