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US4165385A Expired / Lapsed US ⏱️ 0.0 years remaining

Water-in-oil emulsion for skin moisturizing

Assignee: Dianis Creations Inc
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Filing: 1975-07-16
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Granted: 1979-08-21
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Expires: 1995-07-16
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Abstract

Abstract A reasonably stable water-in-oil skin moisturizer cream can be prepared from up to 90 or 95 parts by weight of an oil phase containing at least 5 weight percent cocoa butter and at least 5, preferably at least 10, parts by weight of water. Borax is preferably added to the water phase. The oil phase also contains 200-400 phr vegetable oil, based on the weight of cocoa butter. Mineral oil, a suitable ester wax, and, preferably, a suitable fatty acid ester emollient are also included in the oil phase. A fatty acid amine stearate helps to stabilize the skin cream. Despite the presence of both water and cocoa butter in the same composition, storage stability problems can be overcome, and the skin cream liquifies easily on the skin.

Inventors

  • 👤 Elsa G. Lefebvre

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 06:35
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/064; A61K8/18; A61K8/30; A61K8/31; A61K8/33; A61K8/37; A61K8/92; A61K8/922; A61Q; A61Q19/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 91 words
A water-in-oil emulsion comprising water dispersed in an oil phase comprising the following ingredients: purified cocoa butter, a liquid triglyceride vegetable oil, a C 12 -C 26 fatty acid ester wax, and mineral oil; the amounts of said ingredients being defined as follows: ______________________________________ Parts by Weight per 100 % by Weight of Parts by Weight of Cocoa Total Composition Butter Ingredient ______________________________________ 5- 25 -- cocoa butter 30- 50 200- 400 vegetable oil 3- 15 25- 100 ester wax Same as wax 25- 100 mineral oil 5- 25 water ______________________________________
Claim 2
Dependent Claim 91 words
A water-in-oil emulsion comprising water dispersed in an oil phase comprising the following ingredients: purified cocoa butter, a liquid triglyceride vegetable oil, a C 12 -C 26 fatty acid ester wax, and mineral oil; the amounts of said ingredients being defined as follows: ______________________________________ Parts by Weight per 100 % by Weight of Parts by Weight of Cocoa Total Composition Butter Ingredient ______________________________________ 5- 25 -- cocoa butter 30- 50 200- 400 vegetable oil 3- 15 25- 100 ester wax Same as wax 25- 100 mineral oil 5- 25 water ______________________________________
Claim 3
Dependent Claim 27 words
The emulsion of claim 1 wherein said oil phase further comprises up to 100 parts, per 100 parts by weight of said cocoa butter, of isopropyl myristate.
Claim 4
Dependent Claim 55 words
The emulsion of claim 2 wherein said emulsion is a soft solid, and wherein said oil phase comprises, per 100 parts by weight of cocoa butter: 275-300 parts by weight of said vegetable oil 40-80 parts by weight of said ester wax 40-80 parts by weight of mineral oil 125-200 parts by weight of water.
Claim 5
Dependent Claim 40 words
The emulsion of claim 2 wherein said water is contained in an aqueous phase comprising at least 80% by weight of water, 0.1-2% by weight of borax, and, at least at the surfaces thereof, 1-10% by weight of triethanolamine stearate.
Claim 6
Dependent Claim 19 words
The emulsion of claim 2 wherein said oil phase comprises at least 25 parts by weight of isopropyl myristate.
Claim 7
Dependent Claim 12 words
The emulsion of claim 2 wherein said emulsion is a soft solid.
Claim 8
Dependent Claim 61 words
The emulsion of claim 2 wherein said oil phase comprises, per 100 parts by weight of said cocoa butter: 275-350 parts by weight safflower oil, 40-80 parts by weight beeswax, 40-80 parts by weight isopropyl myristate, and 40-80 parts by weight mineral oil, and wherein the total weight of said oil phase is 2-5 times the weight of said aqueous phase.
Claim 9
Dependent Claim 32 words
The emulsion of claim 2 wherein the amount of water is 125-200 parts by weight per 100 parts by weight of said cocoa butter, based on the total weight of the emulsion.
Claim 10
Dependent Claim 39 words
A water-in-oil emulsion according to claim 1 consisting essentially of, by weight, the following ingredients in approximately the indicated amounts: 12% purified cocoa butter, U.S.P.; 40% edible safflower oil; 7% isopropyl myristate, U.S.P.; 8% mineral oil; and 20% water.
Claim 11
Dependent Claim 164 words
A soft, solid water-in-oil emulsion according to claim 1 consisting of water dispersed in an oil phase, said oil phase consisting of: ______________________________________ Weight % Ingredient ______________________________________ 12.0 purified cocoa butter, U.S.P. cosmetic grade 40.0 edible safflower oil 7.5 beeswax, U.S.P. 7.0 isopropyl myristate, U.S.P. 8.0 mineral oil 2.3 stearic acid, U.S.P. 0.8 polyoxyethylene sorbitan monostearate with an acid number of 0-2.0, a saponification number of 45-55, a hydroxyl number of 81-96, and an average oxyethylene content of 20 oxyethylene units per sorbitan nucleus 0.1 propyl p-hydroxy benzoate 0.05 of an anti-oxidant consisting of 20 weight - % butylated hydroxyanisole, 6 weight-% propyl gallate, 4 weight-% citric acid, and 70 weight-% propylene glycol said water phase consisting of: 19.7 deionized water 0.2 methyl-p-hydroxybenzoate 0.3 colloidal complex of magnesium aluminum silicate, C.T.F.A. specification of April 24, 1961, revised June 8, 1962, February 10, 1965, and May 30, 1971, formerly T.G.A. specification no. 82 0.3 borax 1.1 triethanolamine, U.S.P. 0.6 perfume and a coloring agent. ______________________________________

References Cited (Backward Citations)

US2109842A Cited
US2520980A Cited
US3211618A Cited
US3536816A Cited
US3489690A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-08-20 1983-02-19 1983-08-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-08-20 1987-02-19 1987-08-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-08-20 1991-02-19 1991-08-21 $7700.00 Window Closed / Lapsed

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