Use of surfactant mixtures with matching hydrophobes to obtain increased performance in laundry detergents
AssigneeCognis Corporation
InventorsGeorge A. Smith, Michael Hansberry, Stephen F. Gross
Life of this patent
Estimating the term…
Abstract
A surfactant composition containing a mixture of at least two surfactants selected from the group consisting of anionics, nonionics, cationics, amphoterics, and mixtures thereof, wherein the surfactants have matching carbon chain length distributions in their hydrophobic groups.
Claims11
A surfactant composition comprising:
- (a) from about 40 to about 60% by weight of a linear alcohol ethoxylate having from about 3 to about 7 moles of ethylene oxide;
- (b) from about 20 to about 30% by weight of an ether sulfate;
- and
- (c) from about 20 to about 30% by weight of an alkyl polyglycoside, all weights being based on the weight of the composition, wherein (a)-(c) all have a C12/14/16 hydrophobic group.
A process for making a surfactant composition comprising mixing:
- (a) from about 40 to about 60% by weight of a linear alcohol ethoxylate having from about 3 to about 7 moles of ethylene oxide;
- (b) from about 20 to about 30% by weight of an ether sulfate;
- and
- (c) from about 20 to about 30% by weight of an alkyl polyglycoside, all weights being based on the weight of the composition, wherein (a)-(c) all have a C12/14/16 hydrophobic group.
A cleaning formulation comprising from about 5 to about 50% by weight, based on the weight of the formulation, of a surfactant composition, the surfactant composition containing:
- (a) from about 40 to about 60% by weight of a linear alcohol ethoxylate having from about 3 to about 7 moles of ethylene oxide;
- (b) from about 20 to about 30% by weight of an ether sulfate;
- and
- (c) from about 20 to about 30% by weight of an alkyl polyglycoside, all weights being based on the weight of the composition, wherein (a)-(c) all have a C12/14/16 hydrophobic group.
A surfactant composition comprising a mixture of at least two surfactants selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant and mixtures thereof, wherein the at least two surfactants have matching C12/14 16 carbon chain length distributions in their hydrophobic groups, and wherein the at least two surfactants are derived from a common hydrocarbon starting material.
A process for synergistically enhancing the cleaning effectiveness of a surfactant mixture comprising combining at least two surfactants selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant and mixtures thereof, wherein the at least two surfactants have matching C12/14/16 carbon chain length distributions in their hydrophobic groups, and wherein the at least two surfactants are derived from a common hydrocarbon starting material.
Dependencies are inferred from the claim text.