US4552755A
Expired / Lapsed
US
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Substantive moisturizing compositions
Assignee: 3M Co
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Filing: 1984-05-18
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Granted: 1985-11-12
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Expires: 2004-05-18
Abstract
Abstract Improved, oil-in-water moisturizing compositions are disclosed comprising an oil phase containing at least one emollient oil and an oil-soluble acrylate polymer, a water phase and an emulsifying agent. The acrylate polymer improves the substantivity of the compositions.
Inventors
- 👤 Neil A. Randen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:43
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/062; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61Q19/007
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
207 words
A moisturizing composition for application to mammalian skin consisting essentially of an oil-in water emulsion containing: (a) an oil phase comprising an effective amount of at least one emollient oil and from 0.5 to 20 percent by weight of an acrylate polymer having a solubility parameter of 6 to 10 (cal/cc) 1/2 in poorly hydrogen-bonding solvents, said polymer being derived from the same or different ester monomers of the formula: ##STR3## wherein R 1 is an alkyl radical containing 4 to 18 carbon atoms in cyclic, straight- or branched-chain configuration; R 2 is hydrogen or lower alkyl, and up to 30 mole percent of the same or different monomers of the formula: ##STR4## wherein R 3 is H or an alkyl radical containing 1 to 18 carbon atoms; R 4 is hydrogen, methyl, or --CO 2 R 3 and R 5 is hydrogen, lower alkyl or --CH 2 CO 2 R 3 ; provided, that when R 4 is not hydrogen, R 5 is hydrogen, and when R 5 is not hydrogen, R 4 is hydrogen, (b) about 45 to 95 percent by weight of a water phase, and (c) an effective amount of an emulsifying agent, said composition having a substantivity value of at least 30.
Claim 2
Dependent Claim
207 words
A moisturizing composition for application to mammalian skin consisting essentially of an oil-in water emulsion containing: (a) an oil phase comprising an effective amount of at least one emollient oil and from 0.5 to 20 percent by weight of an acrylate polymer having a solubility parameter of 6 to 10 (cal/cc) 1/2 in poorly hydrogen-bonding solvents, said polymer being derived from the same or different ester monomers of the formula: ##STR3## wherein R 1 is an alkyl radical containing 4 to 18 carbon atoms in cyclic, straight- or branched-chain configuration; R 2 is hydrogen or lower alkyl, and up to 30 mole percent of the same or different monomers of the formula: ##STR4## wherein R 3 is H or an alkyl radical containing 1 to 18 carbon atoms; R 4 is hydrogen, methyl, or --CO 2 R 3 and R 5 is hydrogen, lower alkyl or --CH 2 CO 2 R 3 ; provided, that when R 4 is not hydrogen, R 5 is hydrogen, and when R 5 is not hydrogen, R 4 is hydrogen, (b) about 45 to 95 percent by weight of a water phase, and (c) an effective amount of an emulsifying agent, said composition having a substantivity value of at least 30.
Claim 3
Dependent Claim
20 words
The composition according to claim 1 wherein said ester monomer is an alkyl ester of acrylic acid or methacrylic acid.
Claim 4
Dependent Claim
44 words
The composition according to claim 1 wherein said acrylate polymer is selected from the group consisting of: a copolymer of iso-octyl acrylate and acrylic acid; a copolymer of iso-octyl acrylate and stearyl methacrylate; and a terpolymer of iso-octyl acrylate, stearyl methacrylate and acrylic acid.
Claim 5
Dependent Claim
25 words
The composition according to claim 1 wherein said emulsifying agent is present in an amount between 1 and 10 percent by weight of said composition.
Claim 6
Dependent Claim
31 words
The composition according to claim 1 wherein said emulsifying agent is selected from the group consisting of: 82-mole ethoxylate of glyceryl tallowate glyceryl stearate, and the 20-mole ethoxylate of cetyl/stearyl alcohol.
Claim 7
Independent Claim
90 words
A method of moisturizing mammalian skin comprising applying to said skin an effective amount of a composition comprising an oil-in-water emulsion containing an oil phase comprising an effective amount of at least one emollient oil and from 0.5 to 20 percent by weight of an acrylate polymer having a solubility parameter of 6 to 10 (cal/cc) 1/2 in poorly hydrogen-bonding solvents, about 45 to 95 percent by weight of a water phase and, an effective amount of an emulsifying agent, said composition having a substantivity value of at least 30.
Claim 8
Independent Claim
90 words
A method of moisturizing mammalian skin comprising applying to said skin an effective amount of a composition comprising an oil-in-water emulsion containing an oil phase comprising an effective amount of at least one emollient oil and from 0.5 to 20 percent by weight of an acrylate polymer having a solubility parameter of 6 to 10 (cal/cc) 1/2 in poorly hydrogen-bonding solvents, about 45 to 95 percent by weight of a water phase and, an effective amount of an emulsifying agent, said composition having a substantivity value of at least 30.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |