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US 6,387,868 B1Granted
Clear liquid detergent containing alkylbenzenesulfonate anionic surfactant and liquid sodium silicate and surfactants in water
AssigneeUno Shoyu Co., Ltd.
InventorsMinoru Uno, Tsutomu Uno, Hisashi Uno
Life of this patent
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Abstract
A clear liquid detergent containing, in water, an alkylbenzenesulfonic anion surfactant, liquid sodium silicate, a polyoxyethylene alkyl or aryl ether nonionic surfactant and an alkylethersulfate salt anionic surfactant.
Claims65
A clear liquid detergent consisting of:
- an alkylbenzenesulfonate salt anionic surfactant, liquid sodium silicate, a polyoxyethylene alkyl or aryl ether nonionic surfactant, an alkylethersulfate salt anionic surfactant, a metal-chelating agent, a pH adjusting agent, a freezing/clouding inhibitor, water, and an optional component selected from a fluorosurfactant and a viscosity adjusting agent.
A clear liquid detergent consisting of:
- an alkylbenzenesulfonate salt anionic surfactant, liquid sodium silicate, a polyoxyethylene alkyl or aryl ether nonionic surfactant, an alkylethersulfate salt anionic surfactant, a metal-chelating agent, a pH adjusting agent, a freezing/clouding inhibitor, water, and optionally a fluorosurfactant;
- wherein said detergent being prepared by blending liquid sodium silicate in an amount of 1 to 7.5% by weight, a metal-chelating agent in an amount of 0.5 to 3% by weight, a pH adjusting agent in an amount of 0.05 to 5% by weight, an alkylbenzenesulfonic acid in an amount of 5 to 15% by weight, an alkali metal hydroxide in an amount of 1 to 4.5% by weight as a neutralizing agent for said alkylbenzenesulfonic acid to provide said alkylbenzenesulfonate salt anionic surfactant, a fluorosurfactant in an amount of 0 to 0.1% by weight, polyoxyethylene alkyl or aryl ether nonionic surfactant in an amount of 1 to 10% by weight, an alkylethersulfate salt anionic surfactant in an amount of 1 to 15% by weight, a freezing/clouding inhibitor in an amount of 0.1 to 3% by weight, and the balance of water.
A clear liquid detergent consisting of:
- an alkylbenzenesulfonate salt anionic surfactant, liquid sodium silicate, a polyoxyethylene alkyl or aryl ether nonionic surfactant, an alkylethersulfate salt anionic surfactant, a metal-chelating agent, a pH adjusting agent, a freezing/clouding inhibitor, water, and optionally a fluorosurfactant;
- wherein said detergent being prepared by adding, to (1) an aqueous solution of a mixed surfactant containing polyoxyethylene alkyl or aryl ether nonionic surfactant, a freezing/clouding inhibitor, alkylethersulfate salt anionic surfactant, water, and optionally a fluorosurfactant, (2) a sodium silicate aqueous solution containing liquid sodium silicate, a metal-chelating agent, a pH adjusting agent and water, and adding, to the resultant mixture, (3) an aqueous solution of alkylbenzenesulfonate salt anionic surfactant prepared by adding, to alkylbenzenesulfonic acid, water and an alkali metal hydroxide used as a neutralizing agent for said alkylbenzenesulfonic acid to provide said alkylbenzenesulfonate salt anionic surfactant.
A clear liquid detergent consisting of:
- 5 to 15.5% by weight of an alkylbenzenesulfonate salt anionic surfactant comprising sodium salt of linear dodecylbenzenesulfonate,
- 1 to 7% by weight of liquid sodium silicate,
- 1 to 10% by weight of a polyoxyethylene alkyl or aryl ether nonionic surfactant comprising at least one member selected from the group consisting of a polyoxyethylene alkyl ether represented by the formula:
- RO(CH2CH2O)nH
- where R represents an alkyl group having 8 to 18 carbon atoms, and n represents 7 to 10;
- and a polyoxyethylene alkylphenyl ether is represented by the formula:
- R—C6H4—O(CH2CH2O)nH
- where R represents an alkyl group having 8 or 9 carbon atoms, and n represents 9 to 12,
- 1 to 15% by weight of alkylethersulfate salt anionic surfactant comprising at least one member selected from the group consisting of an alcholethoxysulfate represented by the formula:
- R—(OCH2CH2)nOSO3M
- where R represents a primary alkyl group having 12 carbon atoms, M represents an alkali metal cation, and n represents 1 to 10;
- and an alcholethoxysulfate represented by the formula:
- R(R′)—CH—(OCH2CH2)nOSO3M
- where R represents an alkyl group having 6 to 10 carbon atoms, R′ represents an alkyl group having 2 to 4 carbon atoms, M represents an alkali metal cation, and n represents 1 to 10,
- 0.5 to 3% by weight of tetrasodium ethylenediaminetetraacetate,
- 0.05 to 5% by weight of malic acid and/or citric acid,
- 0.1 to 3% by weight of a fatty acid alkanolamide which is a condensation product of a fatty acid having from 8 to 18 carbon atoms with an alkanolamine having from 8 to 18 carbon atoms, and
- the balance of water.
15 more elements
A clear liquid detergent consisting of:
- 5 to 15.5% by weight of an alkylbenzenesulfonate salt anionic surfactant comprising sodium salt of linear dodecylbenzenesulfonate,
- 1 to 7% by weight of liquid sodium silicate,
- 1 to 10% by weight of a polyoxyethylene alkyl or aryl ether nonionic surfactant comprising at least one member selected from the group consisting of a polyoxyethylene alkyl ether represented by the formula:
- RO(CH2CH2O)nH
- where R represents an alkyl group having 8 to 18 carbon atoms, and n represents 7 to 10;
- and a polyoxyethylene alkylphenyl ether is represented by the formula:
- R—C6H4—O(CH2CH2O)nH
- where R represents an alkyl group having 8 or 9 carbon atoms, and n represents 9 to 12,
- 1 to 15% by weight of an alkylethersulfate salt anionic surfactant comprising at least one member selected from the group consisting of an alcholethoxysulfate represented by the formula:
- R—(OCH2CH2)nOSO3M
- where R represents a primary alkyl group having 12 carbon atoms, M represents an alkali metal cation, and n represents 1 to 10;
- and an alcholethoxysulfate represented by the formula:
- R(R′)—CH—(OCH2CH2)nOSO3M
- where R represents an alkyl group having 6 to 10 carbon atoms, R′ represents an alkyl group having 2 to 4 carbon atoms, M represents an alkali metal cation, and n represents 1 to 10,
- 0.01 to 0.1% by weight of a fluorosurfactant comprising a perfluoroalkylcarboxylic acid,
- 0.5 to 3% by weight of tetrasodium ethylenediaminetetraacetate,
- 0.05 to 5% by weight of malic acid and/or citric acid,
- 0.1 to 3% by weight of a fatty acid alkanolamide which is a condensation product of a fatty acid having from 8 to 18 carbon atoms with an alkanolamine having from 8 to 18 carbon atoms, and
- the balance of water.
16 more elements
Dependencies are inferred from the claim text.