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US 4,287,082 AGranted
Homogeneous enzyme-containing liquid detergent compositions containing saturated acids
AssigneeThe Procter & Gamble Company
InventorsFlavio Tolfo, Christian R. Barrat
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Abstract
Homogeneous aqueous enzyme-containing liquid detergent compositions containing substantial levels of saturated fatty acids, minute amounts of enzyme-accessible calcium, and additive levels of selected short chain carboxylic acids are disclosed. These compositions exhibit a broad range of stability benefits with respect to the activity of the individual ingredients as well as in respect to homegeneity.
Claims9
A homogeneous aqueous liquid detergent composition consisting essentially of:
- (a) from about 20% to about 50% by weight of organic synthetic surface-active agent selected from the group consisting of anionic and nonionic surfactants;
- (b) from about 3% to about 15% by weight of saturated fatty acid having from 12 to 14 carbon atoms in the alkyl chain;
- (c) from 0.04% to 0.4% by weight of enzyme selected from the group consisting of proteases and mixtures of proteases and amylases;
- (d) from 0.1% to 3% by weight of carboxylic acid or salt thereof selected from the group consisting of acetic acid, formic acid and sodium formate;
- (e) from 0.5 to 1.5 millimoles per kilo of the detergent composition of enzyme-accessible calcium;
- the pH of the composition, measured at 20.degree. C., being from 6.5 to 8.5.
3 more elements
Dependencies are inferred from the claim text.