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US3926840A Expired / Lapsed US ⏱️ 0.0 years remaining

Emulsifiers of water-in-oil creams

Assignee: Henkel AG and Co KGaA
•
Filing: 1973-08-15
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Granted: 1975-12-16
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Expires: 1993-08-15
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Abstract

Abstract Emulsifier combinations containing mixtures of vegetable sterols and of monoesters and polyesters of oleic acid and/or ricinoleic acid with polyhydroxyl compounds having at least 3 alcoholic hydroxyl groups in the molecule, as well as skin creams containing these combinations.

Inventors

  • 👤 Ingrid Wendler
  • 👤 Jurgen Malaszkiewicz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 14:08
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/06; A61K47/28; A61K47/08; A61K47/14; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/064; A61K8/18; A61K8/30; A61K8/33; A61K8/37; A61K8/375; A61K8/60; A61K8/63; A61K8/72; A61K8/73; A61K8/732; A61K9/00; A61K9/0012; A61K9/0014; A61Q; A61Q19/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 143 words
AN EMULSIFIER COMBINATION FOR USE IN PREPARING CREAMS OF THE WATER-IN-OIL TYPE CONSISTING OF (A) VEGETABLE STEROLS AND (B) AN ESTER MIXTURE SELECTED FROM THE GROUP CONSISTING OF (1) MONOESTERS OF OLEIC ACID WITH POLYOLS HAVING AAAT LEAST 3 HYDROXYL GROUPS IN THE MOLECULE AND POLYESTERS OF OLEIC ACID WITH POLYOLS HAVING AT LEAST 3 HYDROXYL GROUPS IN THE MOLECULE, (2) MONOESTERS OF RICINOLEIC ACID WITH POLYOLS HAVING AT LEAST (3) HYDROXYL GROUPS IN THE MOLECULE AND POLYESTERS OF RICINOLEIC ACID WITH POLYOLS HAVING AT LEAST 3 HYDROXYL GROUPS IN THE MOLECULE, AND (3) AND THE MIXTURE OF (1) AND (2) ABOVE, THE WEIGHT RATIO OF SAID ESTER MIXTURE TO SAID VEGETABLE STEROLS RANGING FROM 90:10 TO 50:50, WITH THE PROVISO THAT THE AMOUNT OF FREE HYDROXYL GROUPS IN SAID ESTER MIXTURE EXCEEDS THE AMOUNT OF ESTERIFIED HYDROXYL GROUPS IN SAID ESTER MIXTURE.
Claim 2
Dependent Claim 143 words
AN EMULSIFIER COMBINATION FOR USE IN PREPARING CREAMS OF THE WATER-IN-OIL TYPE CONSISTING OF (A) VEGETABLE STEROLS AND (B) AN ESTER MIXTURE SELECTED FROM THE GROUP CONSISTING OF (1) MONOESTERS OF OLEIC ACID WITH POLYOLS HAVING AAAT LEAST 3 HYDROXYL GROUPS IN THE MOLECULE AND POLYESTERS OF OLEIC ACID WITH POLYOLS HAVING AT LEAST 3 HYDROXYL GROUPS IN THE MOLECULE, (2) MONOESTERS OF RICINOLEIC ACID WITH POLYOLS HAVING AT LEAST (3) HYDROXYL GROUPS IN THE MOLECULE AND POLYESTERS OF RICINOLEIC ACID WITH POLYOLS HAVING AT LEAST 3 HYDROXYL GROUPS IN THE MOLECULE, AND (3) AND THE MIXTURE OF (1) AND (2) ABOVE, THE WEIGHT RATIO OF SAID ESTER MIXTURE TO SAID VEGETABLE STEROLS RANGING FROM 90:10 TO 50:50, WITH THE PROVISO THAT THE AMOUNT OF FREE HYDROXYL GROUPS IN SAID ESTER MIXTURE EXCEEDS THE AMOUNT OF ESTERIFIED HYDROXYL GROUPS IN SAID ESTER MIXTURE.
Claim 3
Dependent Claim 25 words
The emulsifier combination of claim 1, in which the ratio of said ester mixture to said sterol is from 85:15 to 70:30 percent by weight.
Claim 4
Dependent Claim 36 words
The emulsifier combination of claim 1, in which said vegetable sterols consist of a mixture of at least two vegetable sterols selected from the group consisting of sitosterol, campesterol, stigmasterol, brassicusterol, Alpha -spinasterol, sargasterol, and fucosterol.
Claim 5
Dependent Claim 20 words
The emulsifier combination of claim 1, in which said vegetable sterols are a mixture consisting of sitosterol, campesterol, and stigmasterol.
Claim 6
Dependent Claim 61 words
The emulsifier combination of claim 1, in which said polyol having at least 3 hydroxyl groups in the molecule is selected from the group consisting of alkanetriols having 3 to 6 carbon atoms, alkanetetrols having 4 to 6 carbon atoms, alkanepentols having 5 to 6 carbon atoms, hexanehexols, polyglycerols having 2 to 20 glycerol units, monosaccharides, polysaccharides, and the mixtures thereof.
Claim 7
Dependent Claim 47 words
The emulsifier combination of claim 1, in which said polyol having at least 3 hydroxyl groups in the molecule is selected from the group consisting of glycerol, erythritol, arabitol, xylitol, mannitol, sorbitol, dulcitol, polyglycerols having 2 to 10 glycerol units, mannose, glucose, fructose, saccharose, maltose, and lactose.
Claim 8
Dependent Claim 121 words
The emulsifier combination of claim 1, in which said ester mixture of (B) is selected from the group consisting of a mixture consisting of a major portion of glycerol monooleate and glycerol dioleate with a minor portion of glycerol trioleate, a mixture consisting of tetraglycerol monooleate, tetraglycerol dioleate and tetraglycerol trioleate, a mixture consisting of decaglycerol monooleate, decaglycerol dioleate and decaglycerol trioleate, a mixture consisting of decaglycerol monoricinoleate, decaglycerol diricinoleate and decaglycerol triricinoleate, a mixture consisting of sorbitol monooleate, sorbitol dioleate and sorbitol trioleate, a mixture consisting of sorbitol monoricinoleate, sorbitol diricinoleate and sorbitol triricinoleate, a mixture consisting of saccharose monooleate, saccharose dioleate and saccharose trioleate, a mixture consisting of saccharose monoricinoleate, saccharose diricinoleate and saccharose triricinoleate, and the mixtures thereof.
Claim 9
Dependent Claim 41 words
The emulsifier combination of claim 7, in which said ester mixture consists of from 5% to 20% by weight of saccharose monooleate, from 30% to 70% by weight of saccharose dioleate, and from 65% to 10% by weight of saccharose trioleate.
Claim 10
Dependent Claim 40 words
The emulsifier combination of claim 8, in which said ester mixture consists of from 10% to 15% by weight of saccharose monooleate, 40% to 60% by weight of saccharose dioleate, and from 50% to 25% by weight of saccharose trioleate.
Claim 11
Dependent Claim 27 words
An emulsifier combination according to claim 1, which consists of (A) vegetable sterols and (B) an ester mixture consisting of saccharose monooleate, saccharose dioleate and saccharose trioleate.

References Cited (Backward Citations)

US2114490A Cited
US3821121A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-12-15 1979-06-16 1979-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-12-15 1983-06-16 1983-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-12-15 1987-06-16 1987-12-16 $7700.00 Window Closed / Lapsed

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