Thermosettable polymer or prepolymer prepared from heterocyclic

Details Thermosettable polymer or prepolymer prepared from heterocyclic Thermosettable polymer or prepolymer prepared from heterocyclic

1986-02-28

1987-05-26

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

4284111, 524600, 524606, 528207, 528208, 528228, 528229, 528321, 528322, 528337, 528342, 528353, 528363, C08G 8300

Patent

active

046687670

ABSTRACT:
Thermosettable prepolymers are prepared by reacting (A) a heterocyclic material containing one or more rings and one nitrogen atom or a mixture of such materials wherein at least one of such materials contains at least two reactive substituent groups having at least one reactive hydrogen atom attached to a carbon atom which is attached to the ring such as 2,4,6-trimethyl pyridine; with (B) a cycloaliphatic or aromatic carboxylic acid mono- or dianhydride such as phthalic anhydride. These prepolymers or resins, can be homopolymerized without coreactants or copolymerized with N,N'-bis-imides such as 1,1'-(methylenedi-4,1-phenylene)-bismaleimide, to produce products, mat castings or composites having good mechanical and thermal properties.

REFERENCES:
patent: 4214071 (1980-07-01), Alvino et al.

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