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US 3,996,152 AGranted
Bleaching composition
AssigneeThe Procter & Gamble Company
InventorsJames Byrd Edwards, Francis Louvaine Diehl, Mario Stephen Marsan
Life of this patent
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Abstract
Low pH, non-starch gels containing particulate peroxygen compounds, especially diperazelaic acid, provide safe, effective and stable fabric bleaching compositions for use at alkaline pH's, e.g., in laundry baths.
Claims17
A fabric bleaching composition, characterized by a viscosity in the range of about 200 centipoise to about 100,000 centipoise, comprising:
- a. an effective amount of a solid, substantially water-insoluble peroxygen compound;
- b. an amount of a non-starch thickening agent sufficient to impart the desired viscosity to the composition;
- c. sufficient acidifying agent to maintain the pH of the composition in the acidic range until time-of-use;
- and
- d. a liquid carrier.
2 more elements
Dependencies are inferred from the claim text.