Ethynyl-containing aromatic polyamide resin

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

1986-09-16

1988-06-21

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528176, 528183, 528185, 528220, 528337, 528348, C08G 6932

Patent

active

047526424

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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