Novel polyamideimide polymers

Details Novel polyamideimide polymers Novel polyamideimide polymers

Filed on

1988-12-15

Date issued

1990-05-22

Examiner

Kight, III, John

Patent Class

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

SubClass

Synthetic resins

SubSubClass

From ketone or ketene reactant

Other Related Categories

528220, 528229, 528342, 528350, 528354, C08G 1200, C08G 6926, C08G 6308

Type

Patent

Status

active

Patent number

049279068

Description

ABSTRACT:
Novel polymers containing amide and imide moieties are produced by reaction of a spirodilactam precursor selected from 4-oxoheptanedioic acid compounds or 1,6-dioxa [4,4] spirodilactones, a primary diamine and an aromatic tricarboxylic acid compound. The polymer products have relatively high glass transition temperatures.

REFERENCES:
patent: 4314047 (1982-05-01), White et al.
patent: 4330666 (1982-05-01), White et al.
patent: 4362863 (1982-12-01), Kojima et al.
patent: 4398021 (1983-08-01), St. Clair et al.
patent: 4489027 (1984-12-01), St. Clair
Kurita et al., J. Polymer Sci: Polymer Chem Ed., vol. 16, pp. 779-789 (1978).
Gang et al., J. Polymer Sci: Polymer Chem. Ed., vol. 17, pp. 3255-3271 (1979).

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