EP0095889A2
Expired / Lapsed
EP
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Solid cosmetic compositions and methods of preparing them
Assignee: Max Factor and Co
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Filing: 1983-05-25
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Granted: —
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Expires: 2003-05-25
Abstract
Abstract A solid cosmetic composition is provided having improved pay-off qualities and resistance to breakage and cracking which is formed by mixing two liquid dispersion slurries, the first slurry being non-aqueous or substantially so and comprising calcium sulfate hemihydrate, a hydroxylic liquid and cosmetic oils, fragrances, colorants or fillers, and the second slurry comprising water insoluble inorganic or organic particulate materials, colorants and water; the slurries being combined in proportions such that the mixture contains water in excess of that sufficient to totally convert the calcium sulfate hemihydrate to calcium sulfate dihydrate. The mixture solidifies within about 30 minutes to form a smooth, solid cosmetic composition, but the separate slurries have long storage life and can readily be handled.
Inventors
- 👤 Monroe Lanzet
- 👤 John Lambrechts
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 13:24
CPC Classifications
A; A61; A61Q; A61Q1/00; A61Q1/12; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23; A61Q1/02; A61Q1/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
115 words
A method for preparing a solid cosmetic composition comprising mixing a first liquid dispersion which is free or substantially free of water and which includes calcium sulfate hemihydrate and a water miscible hydroxylic liquid which is an alkanol consisting of from 1 to 4 carbon atoms, a glycol containing from 2 to 8 carbon atoms or a mixture of two or more thereof; with a second liquid dispersion comprising water insoluble particulate material and water in a proportion such that there is water present in an amount in excess of that sufficient to totally convert said calcium sulfate hemihydrate to calcium sulfate dihydrate,the mixture also containing a cosmetic ingredient, and allowing the mixture to solidify.
Claim 2
Independent Claim
115 words
A method for preparing a solid cosmetic composition comprising mixing a first liquid dispersion which is free or substantially free of water and which includes calcium sulfate hemihydrate and a water miscible hydroxylic liquid which is an alkanol consisting of from 1 to 4 carbon atoms, a glycol containing from 2 to 8 carbon atoms or a mixture of two or more thereof; with a second liquid dispersion comprising water insoluble particulate material and water in a proportion such that there is water present in an amount in excess of that sufficient to totally convert said calcium sulfate hemihydrate to calcium sulfate dihydrate,the mixture also containing a cosmetic ingredient, and allowing the mixture to solidify.
Claim 3
Dependent Claim
31 words
A method according to Claim 1, wherein the cosmetic ingredient was in the first liquid dispersion and is a low HLB surface active agent, emollient or fragrance oil, or microencapsulated oil.
Claim 4
Dependent Claim
28 words
A method according to Claim 1 or Claim 2, wherein the cosmetic ingredient was in the second liquid dispersion and is a water insoluble microencapsulated oil or colorant.
Claim 5
Independent Claim
24 words
A method according to any one of the preceding Claims, wherein said first liquid dispersion contains less than 5 percent by weight of water.
Claim 6
Independent Claim
30 words
A method according to any one of the preceding Claims, wherein said first liquid dispersion contains less than 3 percent of a surfactant having an HLB of 1.8 to 6.0.
Claim 7
Independent Claim
34 words
A method according to any one of the preceding Claims, wherein said water insoluble inorganic particulate material is a platelet material which is talc, mica, bismuth oxychloride coated mica or titanium dioxide coated mica.
Claim 8
Independent Claim
27 words
A method according to any one of the preceding Claims, wherein the hydroxylic liquid is butylene glycol, isopropanol, ethanol, methanol or a mixture of two or more.thereof.
Claim 9
Independent Claim
36 words
A method according to any one of the preceding Claims, wherein said first liquid dispersion and said second pumpable liquid dispersion are mixed in proportions of 15 parts by weight to 85 parts by weight respectively.
Claim 10
Dependent Claim
51 words
A cosmetic composition formed by combining a hydroxylic liquid which is an alkanol having 1 to 4 carbon atoms or a glycol containg 2 to 8 carbon atoms or a mixture thereof, calcium sulfate hemihydrate, insoluble particulate material, water sufficient to hydrate the calcium sulfate, and at least one cosmetic ingredient.
Claim 11
Dependent Claim
51 words
A cosmetic composition formed by combining a hydroxylic liquid which is an alkanol having 1 to 4 carbon atoms or a glycol containg 2 to 8 carbon atoms or a mixture thereof, calcium sulfate hemihydrate, insoluble particulate material, water sufficient to hydrate the calcium sulfate, and at least one cosmetic ingredient.
Claim 12
Dependent Claim
113 words
A cosmetic composition according to Claim 9 which is formed by combining 3 parts by weight of a hydroxylic liquid selected from an alkanol containing from 1 to 4 carbon atoms, a glycol containing from 2 to 8 carbon atoms or mixtures of such liquids, about 11 parts by weight of calcium sulfate hemihydrate; about 43 parts by weight water; about 38 parts by weight water insoluble inorganic particulate material or about 38 parts of a mixture of water insoluble inorganic particulate material and encapsulated cosmetic fragrance of encapsulated emollient oil; with the remainder being a cosmetic fragrance, colorant, surface active agent, microencapsulated oil, filler or a mixture of two or more thereof.
Claim 13
Dependent Claim
19 words
A composition according to Claim 10, wherein said encapsulated cosmetic fragrances or emollients are microencapsulated in ureaformaldehyde polymer resin.
Claim 14
Dependent Claim
93 words
A cosmetic composition according to Claim 9 formed by combining about 4 parts by weight of a hydroxylic liquid which is an alkanol containing from 1 to 4 carbon atoms, a glycol containing from 2 to 8 carbon atoms or mixtures of two or more thereof; about 11 parts by weight of calcium sulfate hemihydrate. about 41 parts by weight of water; about 19 parts by weight of water insoluble inorganic particulate material; with the remainder a cosmetic fragrance, colorant, microencapsulated oil, surface active agent, filler, or mixture of two or more thereof.
Claim 15
Dependent Claim
66 words
A liquid dispersion comprising about 40 percent by weight calcium sulfate hemihydrate, about 40 percent by weight of a hydroxylic liquid selected from an alkanol containing from 1 to 4 carbon atoms, a glycol containing from 2 to 8 carbon atoms or mixtures of such liquids; up to 5 percent by weight of water; and the remainder comprising cosmetic fragrances, emollients, colorants, microencapsulated oils or fillers.
Claim 16
Dependent Claim
66 words
A liquid dispersion comprising about 40 percent by weight calcium sulfate hemihydrate, about 40 percent by weight of a hydroxylic liquid selected from an alkanol containing from 1 to 4 carbon atoms, a glycol containing from 2 to 8 carbon atoms or mixtures of such liquids; up to 5 percent by weight of water; and the remainder comprising cosmetic fragrances, emollients, colorants, microencapsulated oils or fillers.
References Cited (Backward Citations)
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