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US 6,191,089 B1Granted
Automatic dishwashing tablets
AssigneeColgate-Palmolive Company
InventorsPhilip Gorlin, Leonard Zyzyck, Gary Jakubicki
Life of this patent
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Abstract
An automatic dishwashing composition which is in the form of a tablet generally comprises an alkali metal phosphate detergent builder salt, an alkali metal carbonate, a lubricant, a dialkali metal disilicate, a nonionic surfactant, a polymer containing sulfonic acid groups, a wax coated chlorine bleach compound, and optionally an anionic surfactant.
Claims7
An automatic dishwashing tablet which comprises approximately by weight:
- (a) 20% to 40% of an alkali metal phosphate detergent builder salt;
- (b) 10% to 25% of a dialkali metal disilicate;
- (c) 10 to 40% of an alkali metal carbonate;
- (d) 0.1% to 5% of a low foaming nonionic surfactant;
- (e) 0.1% to 5% of a sulfonated anionic surfactant which is a C8-C14 alkyl diphenyl oxide disulfonate;
- (f) 0.05% to 2% of an alkali metal salt of a fatty acid;
- (g) 0 to 1.0% of a pigment or dye;
- (h) 10% to 25% of sodium sulfate;
- and
- (i) 1% to 30% of a paraffin wax coated chlorine bleach compound wherein the parrafin wax has a melting point of at least 135° F. and said parrafin wax coated chlorine compound contains 60 wt % to 90 wt % of the chlorine bleach compound, 10 wt % to 40 wt % of the paraffin wax and 1 wt % to 10 wt % of a sodium aluminosilicate flow aid and said tablet is elliptically shaped.
7 more elements
Dependencies are inferred from the claim text.