Compositions – Oxidative bleachant – oxidant containing – or generative – Composition containing a stabilizer or a product in the form...
Patent
1992-10-02
1995-01-10
Stoll, Robert L.
Compositions
Oxidative bleachant, oxidant containing, or generative
Composition containing a stabilizer or a product in the form...
2521872, 25218724, 25218725, 25218727, C01B 1106, C01B 1120, C01B 1122
Patent
active
053804589
ABSTRACT:
The present invention provides for dilute aqueous hypohalite solutions stabilized against decomposition catalyzed by copper ions present in said solution containing a small amount of a multidentate heteroaromatic stabilizer compound including the general structure selected from: ##STR1## wherein Ar is comprised of carbon or carbon and nitrogen atoms sufficient to form a 5 or 6 membered aromatic ring or at least one other ring condensed with said 5 or 6 membered aromatic ring, X is selected from the group consisting of nitrogen or carbon which form part of an aromatic ring structure and oxygen, and Y is nitrogen or carbon which form part of an aromatic ring structure.
This invention also provides stable hypohalite-containing aqueous bleach, detergent and disinfectant formulations which retain hypohalite stability even after further dilution with copper-contaminated water.
REFERENCES:
patent: 3532634 (1970-10-01), Woods
patent: 3669891 (1972-06-01), Greenwood et al.
patent: 3749672 (1973-07-01), Golton et al.
patent: 3749672 (1973-07-01), Springfield et al.
patent: 4618402 (1986-10-01), Camus
patent: 4654043 (1987-03-01), Streit et al.
patent: 4898672 (1990-02-01), Burton
patent: 4995984 (1991-02-01), Barkatt
patent: 5250402 (1993-10-01), Okada et al.
Anthony Joseph D.
Colgate-Palmolive Co.
Lieberman Bernard
Stoll Robert L.
Sullivan Robert C.
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