Water-soluble fast polymeric black colorant, its preparation and

Details Water-soluble fast polymeric black colorant, its preparation and Water-soluble fast polymeric black colorant, its preparation and

1981-06-09

1983-03-01

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Polymeric dye, e.g., a chromophore pendant from an addition...

8919, 525351, 525353, 528424, 5253334, 5253336, C09B 6910

Patent

active

043753574

ABSTRACT:
A family of polymeric black colorants is disclosed. The subject colorants are composed of an organic polymer backbone comprised of a plurality of aromatic rings from which depend via azo groups a plurality of chromophore units having the structure ##STR1## wherein M is hydrogen or preferably a cation. These polymeric colorants are water-soluble, and noncrystalline and form dyes and inks that are fast to paper stock.

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patent: 4018826 (1977-04-01), Sless et al.
patent: 4051138 (1977-09-01), Wans et al.
patent: 4096134 (1978-06-01), Otteson et al.
patent: 4144252 (1979-03-01), Wans et al.
patent: 4190716 (1980-02-01), Parkinson et al.

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