Controlled generation hypochlorite compositions and method

Details Controlled generation hypochlorite compositions and method Controlled generation hypochlorite compositions and method

1984-07-11

1986-09-23

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

252 95, 252 99, 25218638, D06L 302, D06L 304, C11D 3395, C11D 754

Patent

active

046133321

ABSTRACT:
A dry bleaching composition, particularly useful for low temperature applications, is provided in which generation of hypochlorite by reaction between a peroxygen bleaching agent and a chloride salt is promoted by an aromatic diol or oxidized aromatic diol activator. Preferred activators are in ester form and provide hypochlorite generation at levels of less than about 20 ppm for at least about the first two minutes following dissolution of the compositions in aqueous solution, but rising to effective bleaching levels within a reasonable time thereafter. The initially low hypochlorite level assists in the functioning of laundry additives, such as fabric brighteners.

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American Potash & Chemical Corporation, Technical Service Report, "Ketone Activated Potassium Monopersulfate Bleach", Feb. 1, 1970.

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