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US 5,851,980 AGranted
Liquid hard surface cleaner comprising a monocarboxylate acid and an ampholytic surfactant having no carboxyl groups
AssigneeS. C. Johnson & Sons, Inc.
InventorRichard W. Avery
Life of this patent
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Abstract
Disclosed herein are hard surface cleaners and methods for creating and using them. The cleaners combine a monocarboxylic acid with an ampholytic surfactant having no carboxyl groups, in an aqueous solution. In one aspect, lactic acid, water, and sodium caprylo ampho hydroxpropyl sulphonate are present.
Claims12
A hard surface cleaner, comprising
- a. at least 50% by weight of water;
- b. a monocarboxylic acid selected from the group consisting of lactic acid, valeric acid, hexanoic acid, and glycolic acid,
- c. at least 1% by weight of an ampho hydroxypropyl sulplionate surfactant and,
- d. an amount of organic solvent soluble in the cleaner sufficient to assist in the removal of soap scum from a hard surface, said cleaner having an acidic pH.
1 more element
A method of cleaning a hard surface comprising the steps of (1) applying a cleaner to a hard surface, said cleaner comprising (a) at least 50% by weight of water;
- (b) a monocarboxylic acid selected from the group consisting of lactic acid, valeric acid, hexanoic acid, and glycolic acid, and (c) at least 1% by weight of an ampho hydroxypropyl sulphonate surfactant, said cleaner having an acidic pH;
- (2) allowing the cleaner to remain in contact with the surface for a sufficient amount of time so that cleaning occurs;
- and (3) rinsing the surface with water.
Dependencies are inferred from the claim text.