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US4364930A
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Cosmetic or pharmaceutical compositions in the form of stable oil-in-water emulsions
Assignee: L'Oréal SA
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Filing: 1981-03-18
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Granted: 1982-12-21
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Expires: 2001-03-18
Abstract
Abstract A stable oil-in-water emulsion for use in cosmetic or pharmaceutical compositions includes as the emulsifying system therefor a combination of (i) a mixture of (1) mono- or di-alkyl carboxylates of alpha -methyl glucoside, or a mixture thereof and (2) mono- or di-alkyl carboxylates of alpha -methyl glucoside polyoxyethylenated with 10-30 moles of ethylene oxide, or a mixture thereof, the said alkyl moiety of each being linear or branched and having from 11-21 carbon atoms, (ii) lecithin, (iii) egg yolk oil, and (iv) a polyacrylic type polymer.
Inventors
- 👤 Jacqueline Griat
- 👤 Arlette Zabotto
- 👤 Constantin Koulbanis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:31
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/062; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/55; A61K8/553; A61K8/60; A61K8/602; A61K8/72; A61K8/81; A61K8/8141; A61K8/8147; A61K8/84; A61K8/86; A61K8/96; A61K8/98; A61K8/981; A61K8/982; A61Q; A61Q1/00; A61Q1/02; A61Q19/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
236 words
An oil-in-water emulsion comprising 15 to 60 percent by weight of an oil phase, 40 to 85 percent by weight of an aqueous phase and an effective amount of an emulsifying agent, said emulsifying agent comprising (i) a mixture of (1) an alkyl carboxylate of α-methyl glucoside, wherein the alkyl carboxylate moiety is selected from the group consisting of mono-laurate, di-laurate, mono-palmitate, di-palmitate, mono-stearate and di-stearate, or a mixture of said alkyl carboxylates of α-methyl glucoside and (2) an alkyl carboxylate of α-methyl glucoside polyoxyethylenated with 10-30 moles of ethylene oxide wherein the alkyl carboxylate moiety is selected from the group consisting of mono-laurate, di-laurate, mono-palmitate, di-palmitate, mono-stearate and di-stearate, or a mixture of said polyoxyethylenated alkyl carboxylates of α-methyl glucoside, the weight ratio of (1) to (2) ranging from 40-60:60-40, said mixture of (1) and (2) being present in an amount of about 3 to 15 percent by weight based on the total weight of said emulsion, (ii) vegetable lecithin or egg lecithin, present in an amount of about 0.03 to 1.2 percent by weight based on the total weight of said emulsion, (iii) egg yolk oil present in an amount of about 0.3 to 4 percent by weight based on the total weight of said emulsion, and (iv) a water soluble acrylic acid polymer present in an amount of about 0.1 to 0.5 percent by weight based on the total weight of said emulsion.
Claim 2
Dependent Claim
236 words
An oil-in-water emulsion comprising 15 to 60 percent by weight of an oil phase, 40 to 85 percent by weight of an aqueous phase and an effective amount of an emulsifying agent, said emulsifying agent comprising (i) a mixture of (1) an alkyl carboxylate of α-methyl glucoside, wherein the alkyl carboxylate moiety is selected from the group consisting of mono-laurate, di-laurate, mono-palmitate, di-palmitate, mono-stearate and di-stearate, or a mixture of said alkyl carboxylates of α-methyl glucoside and (2) an alkyl carboxylate of α-methyl glucoside polyoxyethylenated with 10-30 moles of ethylene oxide wherein the alkyl carboxylate moiety is selected from the group consisting of mono-laurate, di-laurate, mono-palmitate, di-palmitate, mono-stearate and di-stearate, or a mixture of said polyoxyethylenated alkyl carboxylates of α-methyl glucoside, the weight ratio of (1) to (2) ranging from 40-60:60-40, said mixture of (1) and (2) being present in an amount of about 3 to 15 percent by weight based on the total weight of said emulsion, (ii) vegetable lecithin or egg lecithin, present in an amount of about 0.03 to 1.2 percent by weight based on the total weight of said emulsion, (iii) egg yolk oil present in an amount of about 0.3 to 4 percent by weight based on the total weight of said emulsion, and (iv) a water soluble acrylic acid polymer present in an amount of about 0.1 to 0.5 percent by weight based on the total weight of said emulsion.
Claim 3
Dependent Claim
17 words
The oil-in-water emulsion of claim 1 wherein said water soluble acrylic acid polymer is neutralized with triethanolamine.
Claim 4
Dependent Claim
15 words
The oil-in-water emulsion of claim 1 wherein the ratio of (1) to (2) is 50:50.
Claim 5
Dependent Claim
13 words
The oil-in-water emulsion of claim 1 wherein the vegetable lecithin is soy lecithin.
Claim 6
Dependent Claim
24 words
The oil-in-water emulsion of claim 1 wherein the weight ratio of egg yolk oil to the said vegetable lecithin or egg lecithin is 70-95:30-5.
Claim 7
Dependent Claim
15 words
The oil-in-water emulsion of claim 1 wherein (1) is mono-sesquistearate or di-sesquistearate of α-methyl glucoside.
Claim 8
Dependent Claim
22 words
The oil-in-water emulsion of claim 1 wherein (2) is mono-sesquistearate or di-sesquistearate of α-methyl glucoside polyoxyethylenated with 20 moles of ethylene oxide.
References Cited (Backward Citations)
US2555731A
Cited
US3628928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |