Ethynyl-containing aromatic polyamide resin

Details Ethynyl-containing aromatic polyamide resin Ethynyl-containing aromatic polyamide resin

1985-12-10

1987-05-05

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528220, 528337, 528345, 528348, C08G 6932

Patent

active

046634258

ABSTRACT:
Aromatic polyamide resins having repeating units, each containing at least one m-ethynyl amido subunit: ##STR1## These resins can be thermally treated to undergo intra-molecular cyclization, without evolution of volatiles, into polyimidines containing the following subunit. ##STR2##

REFERENCES:
patent: 4097456 (1978-06-01), Barie, Jr.
patent: 4133792 (1979-01-01), Antonoplos et al.
patent: 4367329 (1983-01-01), Sankaran et al.

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