US5476671A
Expired / Lapsed
US
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Synthetic ceramides and their use in cosmetic compostions
Assignee: Chesebrough Ponds USA Inc
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Filing: 1995-04-28
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Granted: 1995-12-19
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Expires: 2015-04-28
Abstract
Abstract A novel pseudoceramide which has improved dispersibility in aqueous solutions and which can be produced by an economical manufacturing process. The process for producing new pseudoceramides and cosmetic compositions containing the new pseudoceramides are also disclosed.
Inventors
- 👤 Suk H. Cho
- 👤 Laura J. Frew
- 👤 Prem Chandar
- 👤 Stephen A. Madison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:23
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H15/06; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/68; A61Q; A61Q19/00; A61Q3/00; A61Q5/00; C07C; C07C233/00; C07C233/01; C07C233/16; C07C233/17; C07C233/18; C07C233/20; C07C235/00; C07C235/02; C07C235/04; C07C235/08; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; A61Q19/007
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
A composition for topical application to human skin, hair or nails, the composition comprising: a) an effective amount of at least one neoceramide of Formula 1 ##STR18## wherein R 1 is a linear or branched, saturated or unsaturated, or hydroxylated aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 2 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 3 and R 4 are the same or different and each is selected from the group consisting of phosphorylethyl amine, phosphorylethyl ammonium chloride, phosphorylethyl ammonium bromide and phosphorylethyl ammonium sulfate; and b) a cosmetically acceptable vehicle for the neoceramide.
Claim 2
Dependent Claim
110 words
A composition for topical application to human skin, hair or nails, the composition comprising: a) an effective amount of at least one neoceramide of Formula 1 ##STR18## wherein R 1 is a linear or branched, saturated or unsaturated, or hydroxylated aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 2 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 3 and R 4 are the same or different and each is selected from the group consisting of phosphorylethyl amine, phosphorylethyl ammonium chloride, phosphorylethyl ammonium bromide and phosphorylethyl ammonium sulfate; and b) a cosmetically acceptable vehicle for the neoceramide.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein the amount of the neoceramide is from 0.0001 to 20% by weight of the composition.
Claim 4
Dependent Claim
24 words
The composition of claim 1 further comprising an ingredient selected from the group consisting of a fatty acid, a fatty alcohol, and mixtures thereof.
Claim 5
Dependent Claim
16 words
The composition of claim 1 which is essentially free of a cholesterol or a plant sterol.
Claim 6
Dependent Claim
18 words
A method of treating skin, hair, or nails which comprises applying topically thereto the composition of claim 1.
Claim 7
Dependent Claim
18 words
A method of treating skin, hair, or nails which comprises applying topically thereto the composition of claim 4.
Claim 8
Dependent Claim
74 words
A neoceramide of Formula I: ##STR19## wherein R 1 is a linear or branched, saturated or unsaturated, or hydroxylated aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 2 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 3 and R 4 each is selected from the group consisting of phosphorylethyl amine, phosphorylethyl ammonium chloride, phosphorylethyl ammonium bromide and phosphorylethyl ammonium sulfate.
Claim 9
Dependent Claim
74 words
A neoceramide of Formula I: ##STR19## wherein R 1 is a linear or branched, saturated or unsaturated, or hydroxylated aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 2 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon group having from 7 to 48 carbon atoms; R 3 and R 4 each is selected from the group consisting of phosphorylethyl amine, phosphorylethyl ammonium chloride, phosphorylethyl ammonium bromide and phosphorylethyl ammonium sulfate.
Claim 10
Dependent Claim
23 words
The neoceramide of claim 1 wherein the combined total number of carbon atoms in R 1 and R 2 is at least 18.
Claim 11
Dependent Claim
22 words
A method of treating skin, hair, or nails which comprises applying topically thereto an effective amount of the neoceramide of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |