Stable hypochlorite solution suspendable dyes

Compositions – Electrolytes for electrical devices

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Details

252 95, 260378, 524722, C01B 1106, C11D 754, C11D 756

Patent

active

044578555

ABSTRACT:
This invention relates to dyes which are resistant to hypochlorite attack, exemplary of which are anthraquinone dyes of the general formula: ##STR1## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 are defined within the specification. The invention also relates to hydrophobic latex particles, such as polyethylene, in which such dyes are deposited. A combined liquid bleaching and dyeing composition is disclosed which includes the aforementioned particles in hypochlorite liquid bleach at a pH above about 11. This composition has sufficiently long shelf life for the purposes of ordinary commerce.

REFERENCES:
patent: 3393153 (1968-07-01), Zimmerer et al.
patent: 3655566 (1972-04-01), Robinson et al.
patent: 3663442 (1972-05-01), Briggs
patent: 3666680 (1972-05-01), Briggs
patent: 3689421 (1972-09-01), Briggs
patent: 3923454 (1975-12-01), Genta
patent: 4193888 (1980-03-01), McHugh
patent: 4202815 (1980-05-01), Wegmann

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