Color stabilized acid-dyeable acrylonitrile-containing fibers

Abstract

Abstract A METHOD AND PRODUCT IS HERIN DESCRIBED FOR IMPARTING COLOR STABILITY TO ACID-DYEABLE ACRYLONITRILE/BROMINECONTAINING POLYMERS CAPABLE OF BEING FORMED INTO FILAMENTS COMPRISING FORMINIG AN ACID-DYEABLE ACRYLONITRILE BROMINE-CONTAINING POLYMER COMPRISNG AT LEAST 60 WEIGHT PERCENT ACRYLONITRILE, 1 TO 15 WEIGHT PERCENT OF A BROMINECONTAINING MONOMER, AND 1 TO 8 WEIGHT PERCENT OF A BASIS MONOMER SELECTED FROM THE GROUP CONSISTING OF FREE RADICAL POLYMERIZABLE UNSATURATED ALIPHATIC AMINES, SUBSTITUTED AMMONIUM BASES, AND MIXTURES THEREOF, AND CONTACTING SAID POLYMERS WITH AN ORGANOPHOSPHORUS COMPOUND IN AN AMOUNT NOT EXCEEDING ABOUT ONE EQUIVALENT PER EQUIVALENT OF SAID ALIPHATIC AMINES, SUBSTITUTED AMMONIUM BASIC GROUPS, OR MIXTURES THEREOF, INCORPORATED IN SAID POLYMER, SAID ORGANOPHOSPORUS COMPOUND BEING REPRESENTED BY THE FORMULA FORMULA: HO-P(=O)(-O-M)-C(-R)(-OH)-P(=O)(-O-M)-OH WHEREIN M IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, SODIUM,LITHIUM, POTASSIUM, AND R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALKYL RADICAL HAVING ONE TO ELEVEN CARBON ATOMS, A PHENYL RADICAL, AND AN ALKYL PHENYL RADICAL CONTAINING NO MORE THAN EIGHT CARBON ATOMS.

Inventors

• 👤 J Masson
• 👤 A Hall

Bibliographic Details