US4128635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cosmetic emulsions containing copolymers of alkyl (meth) acrylates and mono- or polyhydroxyalkyl (meth) acrylates
Assignee: Henkel AG and Co KGaA
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Filing: 1977-03-02
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Granted: 1978-12-05
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Expires: 1997-03-02
Abstract
Abstract Water-in-oil emulsions containing from 2 to 20% by weight of polymeric emulsifiers comprising statistical copolymers composed of units of the general formulae ##STR1## in the molar ratio of (I) to (II) of 2:1 to 20:1, wherein X is hydrogen or methyl, R 1 is alkyl having 6 to 24 carbon atoms, and R 2 is --CH 2 --CH 2 --OH, --CH 2 --CH(OH)--CH 3 ,--CH 2 --CH(OH)--CH 2 OH or --CH 2 --CH 2 --O--CH 2 --CH 2 --OH; 20 to 75% by weight of water; and the remainder to 100% by weight of conventional oily substances used in cosmetic emulsions.
Inventors
- 👤 Brigitte Hase
- 👤 Christian Hase
- 👤 Joachim Galinke
- 👤 Bernd Wegemund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:15
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61K8/02; A61K8/04; A61K8/06; A61K8/064; A61K8/8158; A61Q; A61Q19/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
A cosmetic emulsion of the water-in-oil type, comprising (1) from 2% to 20% by weight of statistical copolymers which are composed, in the molar ratio of (I) to (II) of 2:1 to 20:1, of units of the general formulae ##STR6## wherein X is hydrogen or a methyl radical, R 1 is an alkyl radical of 6 to 24 carbon atoms, and R 2 is a radical selected from the group consisting of --CH 2 --CH 2 OH, --CH 2 --CH(OH)--CH 3 , --CH 2 --CH(OH)--CH 2 OH, and --CH 2 --CH 2 O--CH 2 CH 2 OH, (2) from 20% to 75% by weight of water, and (3) the remainder to 100% by weight of conventional oily substances used in cosmetic emulsions.
Claim 2
Dependent Claim
122 words
A cosmetic emulsion of the water-in-oil type, comprising (1) from 2% to 20% by weight of statistical copolymers which are composed, in the molar ratio of (I) to (II) of 2:1 to 20:1, of units of the general formulae ##STR6## wherein X is hydrogen or a methyl radical, R 1 is an alkyl radical of 6 to 24 carbon atoms, and R 2 is a radical selected from the group consisting of --CH 2 --CH 2 OH, --CH 2 --CH(OH)--CH 3 , --CH 2 --CH(OH)--CH 2 OH, and --CH 2 --CH 2 O--CH 2 CH 2 OH, (2) from 20% to 75% by weight of water, and (3) the remainder to 100% by weight of conventional oily substances used in cosmetic emulsions.
Claim 3
Dependent Claim
19 words
The cosmetic emulsion of claim 1 wherein R 1 is an alkyl radical of 8 to 14 carbon atoms.
Claim 4
Dependent Claim
20 words
The cosmetic emulsion of claim 1 wherein the polymeric emulsifier has an average molecular weight of from 2,000 to 100,000.
Claim 5
Dependent Claim
16 words
The cosmetic emulsion of claim 3 wherein the average molecular weight is from 3,000 to 20,000.
Claim 6
Dependent Claim
28 words
The cosmetic emulsion of claim 1 wherein the polymeric emulsifier is present in an amount of from 5% to 10% by weight, relative to the total cosmetic emulsion.
Claim 7
Dependent Claim
27 words
The cosmetic emulsion of claim 5 wherein the water is present in an amount of from 45% to 65% by weight, relative to the total cosmetic emulsion.
Claim 8
Dependent Claim
31 words
The cosmetic emulsion of claim 1 wherein, in addition to the polymeric emulsifier and water, there are present vegetable or animal fats, waxes, fatty alcohols and hydrocarbons as said oily substance.
Claim 9
Dependent Claim
96 words
In the method of producing a cosmetic emulsion of the water-in-oil type comprising mixing an emulsifier capable of forming water-in-oil creams with a cosmetically acceptable oily material at elevated temperatures, mixing therewith from 20% to 75% by weight of water, cooling under agitation, and recovering said cosmetic emulsion of the water-in-oil type, the improvement consisting of adding (1) from 2% to 20% by weight of the statistical copolymer of claim 1, (2) from 20% to 75% by weight of water and (3) the remainder to 100% by weight of conventional oily substances used in cosmetic emulsions.
Claim 10
Dependent Claim
49 words
A composition which when agitated with water forms a cosmetic emulsion of the water-in-oil type, comprising (1) from 2% to 20% by weight of the statistical copolymer of claim 1, and (2) the remainder to 100% by weight of the composition of conventional oily substances used in cosmetic emulsions.
Claim 11
Dependent Claim
70 words
The cosmetic emulsion of claim 1 wherein the molar ratio of (I) to (II) is (a)2:1 to 8:1 for the copolymers wherein R 2 is a radical selected from the group consisting of --CH 2 --CH 2 OH, --CH 2 --CH(OH)--CH 3 , and --CH 2 --CH 2 O--CH 2 CH 2 OH, and (b) 4:1 to 12:1 for the copolymers wherein R 2 is --CH 2 --CH(OH)--CH 2 OH.
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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) | 1981-12-04 | 1982-06-05 | 1982-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-04 | 1986-06-05 | 1986-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-04 | 1990-06-05 | 1990-12-05 | $7700.00 | Window Closed / Lapsed |