Sulfonate-terminated polyimides and polyamic acids and method fo

Details Sulfonate-terminated polyimides and polyamic acids and method fo Sulfonate-terminated polyimides and polyamic acids and method fo

1984-09-06

1986-05-13

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 26, 528125, 528126, 528128, 528180, 528185, 528220, 528226, 528229, 528352, 528353, C08G 7310

Patent

active

045888051

ABSTRACT:
Sulfonate-terminated polyimides and polyamic acids are prepared by the reaction of a dianhydride such as bisphenol A dianhydride, a diamine such as m-phenylenediamine or bis(4-aminophenyl)methane, and an amino sulfonic acid such as p- or m-aminobenzenesulfonic acid or 2-aminoethanesulfonic acid. The products may be used as compatibilizing agents for blends of aromatic polymers with ionomeric elastomers.

REFERENCES:
patent: 3890274 (1975-06-01), D'Alelio
patent: 3998786 (1976-12-01), D'Alelio
patent: 4206106 (1980-06-01), Heilman et al.
patent: 4251418 (1981-02-01), Chow et al.
patent: 4251420 (1981-02-01), Antonoplos et al.
patent: 4255313 (1981-03-01), Antonoplos et al.
patent: 4469860 (1984-09-01), Rosenquist
patent: 4499252 (1985-02-01), Igarashi et al.

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