Process for preparing polyamides having a modified dye affinity

Details Process for preparing polyamides having a modified dye affinity Process for preparing polyamides having a modified dye affinity

1981-02-20

1983-07-05

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528313, 528318, 528336, 528337, C08G 6904, C08G 6928

Patent

active

043919685

ABSTRACT:
Polyamides having a modified dye affinity are disclosed as prepared by polymerizing polyamide-forming monomers with a mixture consisting or consisting essentially of a dicarboxylic acid having the general formula HOOC--R--COOH, in which R is an aromatic, cyclo-aliphatic or aliphatic radical, and of a salt of a sulphonic dicarboxylic acid having the general formula: ##STR1## in which R has the meaning specified hereinbefore, X is an alkali or alkaline earth metal or ammonium, and n is a whole number from 1 to 4.

REFERENCES:
patent: 3039990 (1962-06-01), Huffman
patent: 3142662 (1964-07-01), Huffman
patent: 3184436 (1965-05-01), Magat
patent: 3296204 (1967-01-01), Caldwell
patent: 3389549 (1968-06-01), David
patent: 3654237 (1972-04-01), Kosel et al.
patent: 3682866 (1972-08-01), Garforth
patent: 3755255 (1973-08-01), Lodge
patent: 3950311 (1976-04-01), Radlmann et al.

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