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US 4,316,824 AGranted
Liquid detergent composition containing alkyl sulfate and alkyl ethoxylated sulfate
AssigneeThe Procter & Gamble Company
InventorEugene J. Pancheri
Life of this patent
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Abstract
Aqueous liquid dishwashing detergent compositions are prepared containing from about 10% to about 50% of a specific optimized anionic alkyl polyethoxylate sulfate surfactant which is at least partly in magnesium form, from about 1% to about 20% of a suds stabilizer, and from about 20% to about 88% water.
Claims9
A liquid detergent composition consisting essentially of:
- (a) from about 10% to about 50% by weight of an anionic surfactant which has the general formula
- RO(C.sub.2 H.sub.4 O).sub.x SO.sub.3 M
- wherein R is an alkyl group containing from about 10 to about 16 carbon atoms, M is selected from the group consisting of sodium, potassium, ammonium, monoethanolammonium, diethanolammonium, triethanolammonium, calcium and magnesium cations and mixtures thereof, and the ethoxylate distribution is such that, on a molar basis the compounds wherein x is 0 are from about 54% to about 60%, wherein x is 1 are from about 5% to about 20%, wherein x is 2 are from about 10% to about 13%, and wherein x is 3 are from about 6% to about 7% of the anionic surfactant, and there is sufficient magnesium to at least neutralize 50% of the anionic surfactant wherein x is 0;
- (b) from about 1% to about 20% by weight of a suds stabilizing nonionic surfactant selected from the group consisting of the condensation products of aliphatic alcohols containing from about 10 to about 18 carbon atoms with from about 5 moles to about 30 moles of ethylene oxide, the condensation products of alkyl phenols having an alkyl group containing from about 6 to about 15 carbon atoms with from about 5 to about 30 moles of ethylene oxide per mole of alkyl phenol, fatty acid amides containing an acyl moiety of from about 8 to about 18 carbon atoms, amine oxide semi-polar nonionic surface active agents, and mixtures thereof;
- (c) from 0% to about 10% of a detergency builder selected from the group consisting of sodium tripolyphosphate, sodium carbonate, potassium carbonate, sodium pyrophosphate, potassium pyrophosphate, potassium tripolyphosphate, sodium hexametaphosphate, sodium citrate, potassium citrate, sodium tartrate, potassium tartrate, sodium ethylenediamine tetraacetate, potassium ethylenediamine tetraacetate, sodium N-(2-hydroxyethyl)-ethylenediamine triacetate, potassium N-(2-hydroxyethyl)-ethylenediamine triacetate, sodium nitrilotriacetate, potassium nitrilotriacetate, sodium N-(2-hydroxyethyl)-nitrilodiacetate, potassium N-(2-hydroxyethyl)-nitrilodiacetate, and mixtures thereof;
- and
- (d) from about 20% to about 88% water.
4 more elements
Dependencies are inferred from the claim text.