Solvent system for difficultly soluble polymers

Details Solvent system for difficultly soluble polymers Solvent system for difficultly soluble polymers

1987-07-27

1988-11-15

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 84, 524386, 524391, 524589, 524606, 524608, C08K 545, C08K 541, C08K 7502, C08K 7710

Patent

active

047850388

ABSTRACT:
Difficultly soluble aromatic polyamides, polybenzimidazoles and polyureas dissolve in a defined mixture of liquid sulfoxide, a base and an alcohol or water.

REFERENCES:
patent: 4179423 (1979-12-01), Langanis
patent: 4321182 (1982-03-01), Davitt
patent: 4525507 (1985-06-01), Chaker
Chalmers, "Dimethyl Sulphoxide", Paint Manufac., Feb. 1966, pp. 36-40.
J. of Applied Science, vol. 32, 6299-6315 (1986).
J. Polm. Sci., Polym. Chem. Ed., 19, 1133-1145 (1981).

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