Process for dyeing leathers, water-soluble cationic polymers sui

Details Process for dyeing leathers, water-soluble cationic polymers sui Process for dyeing leathers, water-soluble cationic polymers sui

1986-08-20

1988-10-04

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Leather dyeing

D06P 332

Patent

active

047753854

ABSTRACT:
The invention relates to water-soluble cationic polymers and to their use in leather dyeing. The polymers preferably have K values of from about 20-45 and are obtained by reacting polyacrylonitrile or acrylonitrile copolymers in the presence of alcohols or polyols, optionally in the presence of a sulfur-containing catalyst.

REFERENCES:
patent: 3406139 (1968-10-01), Hurwitz et al.
patent: 3647769 (1972-03-01), Bufton et al.
patent: 4041006 (1977-08-01), Fong et al.
patent: 4254250 (1981-03-01), Glowaky et al.
patent: 4526935 (1985-07-01), Wilkinson
patent: 4595731 (1986-06-01), Wilkinson

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