US4906458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-in-oil-type cosmetic
Assignee: Kao Corp
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Filing: 1988-04-01
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Granted: 1990-03-06
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Expires: 2008-04-01
Abstract
Abstract A w/o-type emulsion cosmetic containing as its effective components, in a specific portion, (a) a specific type of dimethylpolysiloxanepolyoxyalkylene copolymer, (b) oil compounds, which contained at least one kind of polysiloxane, (c) a cosmetic powder of which the surface is treated to produce water-repellence, and (d) an aqueous solution of ethyl alcohol. The cosmetic is of a liquid or creamy type which produces a refreshing feeling upon wise, does not generate an oily, sticky feel, and prevents the make-up from breaking down by water or sweat. Thus, one of the advantageous application of the cosmetic as a liquid foundation for summer use.
Inventors
- 👤 Akira Shigeta
- 👤 Yuko Kikuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:22
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61K8/894; A61K8/02; A61K8/0241; A61K8/04; A61K8/06; A61K8/064; A61K8/30; A61K8/33; A61K8/36; A61K8/361; A61K8/58; A61K8/585; A61Q; A61Q1/00; A61Q1/02; A61Q1/10; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/60; A61K2800/61; A61K2800/612
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
173 words
A water-in-oil-type cosmetic comprising as its effective components: (a) 0.05-5% by weight of a water-insoluble dimethylpolysiloxanepolyoxyalkylene copolymer represented by the following general formula (I): ##STR3## in which a is a value of 1-5, b is a value of 7-15, c is a value of 0-4, m is a value of 20-100, n is a value of 1-5, and R represents a hydrogen atom or an alkyl group having 1-5 carbon atoms; (b) 7-60% by weight of oil components, wherein not less than 60% by weight of at least one kind of polysiloxane represented by the following formulae, (II), (III) or (IV), is contained: ##STR4## in which x is a value of 1-100, z is a value of not less than 1, y+z is a value of 1-100, and l is a value of 2-6; (c) 3-60% by weight of a cosmetic powder of which the surface is treated to produce water-repellence; and (d) 15-80% by weight of an aqueous solution of ethyl alcohol, wherein the proportion by weight of ethyl alcohol/water is 50/50-2/98.
Claim 2
Dependent Claim
173 words
A water-in-oil-type cosmetic comprising as its effective components: (a) 0.05-5% by weight of a water-insoluble dimethylpolysiloxanepolyoxyalkylene copolymer represented by the following general formula (I): ##STR3## in which a is a value of 1-5, b is a value of 7-15, c is a value of 0-4, m is a value of 20-100, n is a value of 1-5, and R represents a hydrogen atom or an alkyl group having 1-5 carbon atoms; (b) 7-60% by weight of oil components, wherein not less than 60% by weight of at least one kind of polysiloxane represented by the following formulae, (II), (III) or (IV), is contained: ##STR4## in which x is a value of 1-100, z is a value of not less than 1, y+z is a value of 1-100, and l is a value of 2-6; (c) 3-60% by weight of a cosmetic powder of which the surface is treated to produce water-repellence; and (d) 15-80% by weight of an aqueous solution of ethyl alcohol, wherein the proportion by weight of ethyl alcohol/water is 50/50-2/98.
Claim 3
Dependent Claim
39 words
The water-in-oil-type cosmetic as claimed in claim 1, wherein component (c) is a cosmetic powder the surface of which is treated by a water-repellent donating agent selected from a member consisting of higher fatty acids, silicones, and alkyl phosphates.
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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) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |