Alcoholic solution of sulphonic acid-containing copolymer dyed w

Details Alcoholic solution of sulphonic acid-containing copolymer dyed w Alcoholic solution of sulphonic acid-containing copolymer dyed w

1985-07-03

1987-12-15

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Polymeric additive

8654, 8657, 8402, 8919, 106 22, 260DIG38, C09B 6734, C09B 6910, C09D 1110, C08F 244

Patent

active

047130830

ABSTRACT:
A coloring material comprising a solution of an alcohol-soluble resin having a sulfonic acid group or a salt thereof, which is dyed with a basic dye, in a solvent comprising an alcohol as a main component. The coloring material is prepared either by (a) polymerizing an ethylenically unsaturated sulfonic acid or a salt thereof in water and adding a basic dye to the obtained aqueous liquid of the formed polymer or (b) carrying out said polymerization in the presence of a basic dye, and dissolving (i) the obtained aqueous liquid of the formed colored polymer of (ii) a colored polymer obtained by removing water from the obtained aqueous liquid of the formed colored polymer in a solvent comprising an alcohol as a main component; or, (a') carrying out said polymerization in a solvent comprising an alcohol as a main component and then adding a basic dye to the obtained polymer solution, or (b') carrying out said polymerization in the presence of a basic dye.

REFERENCES:
patent: 1920324 (1933-08-01), Schmidt
patent: 4042545 (1977-08-01), Defago et al.
patent: 4270916 (1981-06-01), Racciato
patent: 4554018 (1985-11-01), Allen
patent: 4567213 (1986-01-01), Bhatia et al.
patent: 4592756 (1986-06-01), Kawasaki et al.
patent: 4612343 (1986-09-01), Okuzono et al.

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