Polyamide-imide polymers having fluorine-containing linking grou

Details Polyamide-imide polymers having fluorine-containing linking grou Polyamide-imide polymers having fluorine-containing linking grou

1990-12-21

1992-06-09

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528 26, 528 28, 528 33, 528125, 528128, 528170, 528172, 528173, 528179, 528188, 528220, 528229, 528337, 528342, 528352, 528353, C08G 6926, C08G 6928, C08G 7314

Patent

active

051208261

ABSTRACT:
The present invention provides for a novel heat stable class of polyamide-imide polymers having excellent flow properties and hydrolytic stability which are prepared by forming the polycondensation product of one or more aromatic or aliphatic diamines and a comonomer comprising a tri- or hexafluoro-substituted tricarboxylic acid anhydride (or acid derivative thereof) having the structure: ##STR1## wherein R is CF.sub.3 or a phenyl radical. In addition to improved flow properties, the polyamide-imide polymers of this invention also exhibit improved solubility properties in most organic solvents, good resistance to attack by chlorinated solvents such as trichloroethylene as compared with polyimides, improved hydrophobic properties as well as good thermal properties, including resistance to thermooxidative degradation.

REFERENCES:
patent: 3328352 (1967-06-01), Kwolek
patent: 3347828 (1967-10-01), Stephens et al.
patent: 3449296 (1969-06-01), Angelo et al.
patent: 3494890 (1970-02-01), Morollo
patent: 3661832 (1972-05-01), Stephens
patent: 3920612 (1975-11-01), Stephens
patent: 4167620 (1979-09-01), Chen
patent: 4713438 (1987-12-01), Harris
patent: 4877653 (1989-10-01), Vora et al.
patent: 4914180 (1990-04-01), Vora
patent: 4952669 (1990-08-01), Vora
patent: 4954610 (1990-09-01), Chen, Sr. et al.
patent: 4954611 (1990-09-01), Chen, Sr. et al.
patent: 4962183 (1990-10-01), Chen, Sr. et al.
patent: 4978737 (1990-12-01), Vora
patent: 4978742 (1990-12-01), Vora et al.
patent: 5025089 (1991-06-01), Vora et al.
patent: 5026822 (1991-06-01), Vora

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