Mild, viscous cleansing composition with versatile compatibility and enhanced conditioning
First Claim
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1. A mild aqueous shampoo composition having excellent detangling and conditioning properties comprising:
- i) about 6 to about 8% of an alkyl ethoxy sulfate surfactant wherein the alkyl group has an average of 12-16 carbon atoms and the degree of ethoxylation is at least 3,ii) from about 2% to about 7% of a betaine surfactant,iii) from about 2% to about 7% of a hydroxysultaine surfactant,iv) from about 0.1% to about 5% of a non-volatile, water-insoluble silicone,v) at least about 70 wt % water;
vi) less than about 2% of an added surfactant selected from the group consisting of alkyl sulfates and alkyl or alkyl aryl sulfonates, ethoxylated alkylphenols and ethanolamides of aliphatic acids;
wherein the weight ratio of the betaine surfactant to the hydroxysultaine surfactant is in the range of from about 0.5 to about 1.5, and the weight ratio of the alkyl ethoxy sulfate surfactant to the sum of the weights of betaine surfactant and hydroxysultaine surfactant is in the range of from about 0.5 to about 1.5;
wherein the composition is not a potential eye irritant as measured by having either a Zein solubility of less than about 1% as measured by the Zein Solubility In-Vitro Assay or a % permeability of fluorescein leakage less than about 10% as measured by the Fluorescein Leakage Assay; and
wherein the composition has a wet-combing force less than about 20 gm-force as measured by the Wet and Dry Combing Force In-Vitro Assay.
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Abstract
Mild shampoo compositions are described that are economical, have excellent in-use properties, and provide enhanced conditioning benefits. The compositions have low ocular irritation potential and are particularly suitable for use by children. The compositions include a surfactant system composed on an alkyl ethoxy sulfate having at least 3 ethylene oxide groups, a betaine surfactant, and an hydroxysultaine surfactant in specific ratios; and a non-volatile water-insoluble silicone. In-vitro tests are described that allows selection of optional ingredients that do not compromise the mildness or hair conditioning performance of the composition.
56 Citations
19 Claims
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1. A mild aqueous shampoo composition having excellent detangling and conditioning properties comprising:
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i) about 6 to about 8% of an alkyl ethoxy sulfate surfactant wherein the alkyl group has an average of 12-16 carbon atoms and the degree of ethoxylation is at least 3, ii) from about 2% to about 7% of a betaine surfactant, iii) from about 2% to about 7% of a hydroxysultaine surfactant, iv) from about 0.1% to about 5% of a non-volatile, water-insoluble silicone, v) at least about 70 wt % water; vi) less than about 2% of an added surfactant selected from the group consisting of alkyl sulfates and alkyl or alkyl aryl sulfonates, ethoxylated alkylphenols and ethanolamides of aliphatic acids; wherein the weight ratio of the betaine surfactant to the hydroxysultaine surfactant is in the range of from about 0.5 to about 1.5, and the weight ratio of the alkyl ethoxy sulfate surfactant to the sum of the weights of betaine surfactant and hydroxysultaine surfactant is in the range of from about 0.5 to about 1.5;
wherein the composition is not a potential eye irritant as measured by having either a Zein solubility of less than about 1% as measured by the Zein Solubility In-Vitro Assay or a % permeability of fluorescein leakage less than about 10% as measured by the Fluorescein Leakage Assay; and
wherein the composition has a wet-combing force less than about 20 gm-force as measured by the Wet and Dry Combing Force In-Vitro Assay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19)
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16. A mild aqueous shampoo composition having excellent detangling and conditioning properties consisting essentially of:
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i) from about 6% to about 8% of an alkyl ethoxy sulfate wherein the alkyl group has an average of 12-16 carbon atoms and the degree of ethoxylation is at least 3, ii) from about 2% to about 7% of a betaine surfactant selected from the group consisting of alkylamido betaine, alkyl betaine, and alkyl amidoalkyl betaine, iii) from about 2% to about 7% of an alkylamido hydroxysultaine, iv) from about 0.05% to about 2% of a cationically modified cellulose, v) from about 0.1 % to about 5% of a non-volatile, water-insoluble silicone, vi) from about 0.02% to about 1.0% of a polyethylene glycol fatty diester, vii) from about 0.1% to about 1.0% of an electrolyte selected from the group consisting of sodium chloride, sodium citrate, sodium sulfate, sodium bromide, sodium iodide and mixtures thereof, viii) at least 70 wt % water; ix) less than about 2% of an added surfactant selected from the group consisting of alkyl sulfates and alkyl or alkyl aryl sulfonates, ethoxylated alkylphenols and ethanolamides of aliphatic acids; wherein the weight ratio of the betaine surfactant to the alkylamido hydroxysultaine is in the range of from about 0.5 to about 1.5, and the weight ratio of the alkyl ethoxy ether sulfate to the sum of the weights of betaine surfactant and alkylamido hydroxysultaine components is in the range of from about 0.5 to about 1.5; wherein the shampoo composition is not a potential eye irritant as measured by having either a Zein solubility of less than about 1% as measured by the Zein Solubility In-Vitro Assay or a % permeability of fluorescein leakage less than about 10% as measured by the Fluorescein Leakage Assay; and wherein the composition has a wet-combing force less than about 20 gm-force as measured by the Wet and Dry Combing Force In-Vitro Assay.
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Specification
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Current AssigneeUnilever Home & Personal Care USA, Unilever Home & Personal Care Usa Division Of Conopco, Inc.
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Original AssigneeUnilever Home & Personal Care Usa Division Of Conopco, Inc.
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InventorsCarlson, Cinda Sue, Dabkowski, Diane Maria
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Primary Examiner(s)DELCOTTO, GREGORY R
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Application NumberUS10/764,114Publication NumberTime in Patent Office1,957 DaysField of Search510/122, 510/124, 510/125, 510/128, 510/130, 510/137, 510/158, 510/159, 510/466, 510/473, 510/501, 510/506, 424/70.12, 424/70.21, 424/70.24, 424/70.31US Class Current510/122CPC Class CodesA61K 2800/596 Mixtures of surface active ...A61K 8/44 Aminocarboxylic acids or de...A61K 8/463 containing sulfuric acid de...A61K 8/466 containing sulfonic acid de...A61K 8/891 saturated, e.g. dimethicone...A61K 8/892 modified by a hydroxy group...A61Q 5/02 Preparations for cleaning t...A61Q 5/12 Preparations containing hai...
