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US5585104A Expired / Lapsed US ⏱️ 0.0 years remaining

Cleansing emulsions

Assignee: Procter and Gamble Co
•
Filing: 1995-04-12
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Granted: 1996-12-17
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Expires: 2015-04-12
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Abstract

Abstract The present invention relates to compositions for personal cleansing in the form of oil-in-water emulsions. These emulsions have the characteristic of breaking upon contact with the skin to provide improved cleansing efficacy.

Inventors

  • 👤 Robert B. K. Ha
  • 👤 Timothy J. Fowler
  • 👤 George E. Deckner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 03:58
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/91; A61K8/02; A61K8/04; A61K8/06; A61K8/062; A61K8/30; A61K8/60; A61K8/604; A61K8/81; A61K8/8141; A61K8/8152; A61Q; A61Q19/00; A61Q19/10

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 347 words
A composition for personal cleansing in the form of an oil-in-water emulsion that is free from polymerized 1-alkenes having 10 or more carbon atoms, said emulsion having the characteristic of de-emulsifying on contact with the human skin, comprising: (a) from about 0.01% to about 5% by weight of a copolymer comprising a monomer selected from the group consisting of acrylic acid, salts of acrylic acid, C1-C4 alkyl-substituted acrylic acid, salts of C1-C4 alkyl-substituted acrylic acid, C1-C4 alkyl esters of acrylic acid, C1-C4 alkyl esters of C1-C4 alkyl-substituted acrylic acid, maleic anhydride, and mixtures thereof; and a monomer selected from the group consisting of C10-C30 alkyl esters of acrylic acid, C10-C30 alkyl esters of C1-C4 alkyl-substituted acrylic acid, and mixtures thereof, (b) from about 0.05% to about 20% by weight of a nonionic non-emulsifying detersive surfactant having a HLB greater than about 11 corresponding to the chemical formula: ##STR5## wherein R 1 is selected from the group consisting of H, C 1 -C 4 alkyl, 2-hydroxyethyl, or 2-hydroxy-propyl; R 2 is selected from the group consisting of C 5 -C 31 alkyl or alkenyl; and Z is selected from the group consisting of polyhydroxyhydrocarbyl moieties having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, (c) from about 0.5% to about 40% by weight of an oil selected from the group consisting of mineral oil, petrolatum, C7-C40 branched chain hydrocarbons, C1-C30 alcohol esters of C1-C30 carboxylic acids, monoglycerides of C1-C30 carboxylic acids, diglycerides of C1-C30 carboxylic acids, triglycerides of C1-C30 carboxylic acids, ethylene glycol monoesters of C1-C30 carboxylic acids, ethylene glycol diesters of C1-C30 carboxylic acids, propylene glycol monoesters of C1-C30 carboxylic acids, propylene glycol diesters of C1-C30 carboxylic acids, C1-C30 carboxylic acid sugar esters, C1-C30 carboxylic acid sugar polyesters, polydialkylsiloxanes, polydiaryl siloxanes, polyalkarylsiloxanes, cyclomethicones having 3 to 9 silicon atoms, vegetable oils, hydrogenated vegetable oils, polypropylene glycols, polypropylene glycol C4-C20 alkyl ethers, C1-C20 carboxylic acid esters of polypropylene glycols, di C8-C30 alkyl ethers, and mixtures thereof, and (d) from about 20% to about 99.44% by weight water.
Claim 2
Dependent Claim 347 words
A composition for personal cleansing in the form of an oil-in-water emulsion that is free from polymerized 1-alkenes having 10 or more carbon atoms, said emulsion having the characteristic of de-emulsifying on contact with the human skin, comprising: (a) from about 0.01% to about 5% by weight of a copolymer comprising a monomer selected from the group consisting of acrylic acid, salts of acrylic acid, C1-C4 alkyl-substituted acrylic acid, salts of C1-C4 alkyl-substituted acrylic acid, C1-C4 alkyl esters of acrylic acid, C1-C4 alkyl esters of C1-C4 alkyl-substituted acrylic acid, maleic anhydride, and mixtures thereof; and a monomer selected from the group consisting of C10-C30 alkyl esters of acrylic acid, C10-C30 alkyl esters of C1-C4 alkyl-substituted acrylic acid, and mixtures thereof, (b) from about 0.05% to about 20% by weight of a nonionic non-emulsifying detersive surfactant having a HLB greater than about 11 corresponding to the chemical formula: ##STR5## wherein R 1 is selected from the group consisting of H, C 1 -C 4 alkyl, 2-hydroxyethyl, or 2-hydroxy-propyl; R 2 is selected from the group consisting of C 5 -C 31 alkyl or alkenyl; and Z is selected from the group consisting of polyhydroxyhydrocarbyl moieties having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, (c) from about 0.5% to about 40% by weight of an oil selected from the group consisting of mineral oil, petrolatum, C7-C40 branched chain hydrocarbons, C1-C30 alcohol esters of C1-C30 carboxylic acids, monoglycerides of C1-C30 carboxylic acids, diglycerides of C1-C30 carboxylic acids, triglycerides of C1-C30 carboxylic acids, ethylene glycol monoesters of C1-C30 carboxylic acids, ethylene glycol diesters of C1-C30 carboxylic acids, propylene glycol monoesters of C1-C30 carboxylic acids, propylene glycol diesters of C1-C30 carboxylic acids, C1-C30 carboxylic acid sugar esters, C1-C30 carboxylic acid sugar polyesters, polydialkylsiloxanes, polydiaryl siloxanes, polyalkarylsiloxanes, cyclomethicones having 3 to 9 silicon atoms, vegetable oils, hydrogenated vegetable oils, polypropylene glycols, polypropylene glycol C4-C20 alkyl ethers, C1-C20 carboxylic acid esters of polypropylene glycols, di C8-C30 alkyl ethers, and mixtures thereof, and (d) from about 20% to about 99.44% by weight water.
Claim 3
Dependent Claim 14 words
A composition according to claim 1 wherein said copolymer further comprises a crosslinking agent.
Claim 4
Dependent Claim 30 words
A composition according to claim 2 wherein said crosslinking agent is a polyalkenyl polyether of a polyhydric alcohol containing at least 3 carbon atoms and at least three hydroxy groups.
Claim 5
Dependent Claim 28 words
A composition according to claim 3 wherein said crosslinking agent is selected from the group consisting of allyl ethers of sucrose, allyl ethers of pentaerythritol, and mixtures thereof.
Claim 6
Dependent Claim 15 words
A composition according to claim 4 wherein said copolymer is an acrylates/C10-30 alkyl acrylate crosspolymer.
Claim 7
Dependent Claim 22 words
A composition according to claim 5 wherein said oil is selected from the group consisting of mineral oil, petrolatum, and mixtures thereof.
Claim 8
Dependent Claim 27 words
A composition according to claim 5 wherein said oil is selected from the group consisting of polydialkylsiloxanes, cyclomethicones having 3 to 9 silicon atoms, and mixtures thereof.
Claim 9
Dependent Claim 24 words
A composition according to claim 5 wherein said oil is selected from the group consisting of vegetable oils, hydrogenated vegetable oils, and mixtures thereof.
Claim 10
Dependent Claim 66 words
A composition according to claim 5 wherein said oil is selected from the group consisting of C1-C30 alcohol esters of C1-C30 carboxylic acids, monoglycerides of C1-C30 alcohols, diglycerides of C1-C30 alcohols, triglycerides of C1-C30 alcohols, ethylene glycol monoesters of C1-C30 carboxylic acids, ethylene glycol diesters of C1-C30 carboxylic acids, propylene glycol monoesters of C1-C30 carboxylic acids, propylene glycol diesters of C1-C30 carboxylic acids, and mixtures thereof.
Claim 11
Dependent Claim 25 words
A composition according to claim 5 wherein said oil is selected from the group consisting of C7-C40 straight and branched chain hydrocarbons, and mixtures thereof.
Claim 12
Dependent Claim 21 words
A composition according to claim 5 wherein said oil is selected from the group consisting of isododecane, isohexadecane, and mixtures thereof.
Claim 13
Dependent Claim 17 words
A composition according to claim 1 wherein said emulsion is in the form of a rinse-off composition.
Claim 14
Dependent Claim 17 words
A composition according to claim 1 wherein said emulsion is in the form of a wipe-off composition.
Claim 15
Dependent Claim 41 words
A method for cleansing skin comprising the steps of (1) applying to the skin from about 0.5 mg/cm 2 to about 25 mg/cm 2 of the composition of claim 1, and (2) rinsing the composition of claim 1 from the skin.
Claim 16
Dependent Claim 41 words
A method for cleansing skin comprising the steps of: (1) applying to the skin from about 0.5 mg/cm 2 to about 25 mg/cm 2 of the composition of claim 1, and (2) wiping the composition of claim 1 from the skin.

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3.5 Years (Year 4) 1999-12-17 2000-06-17 2000-12-17 $2000.00 Window Closed / Lapsed
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