US5817155A
Expired / Lapsed
US
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Emulsion for hair treatment
Assignee: Shiseido Co Ltd
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Filing: 1996-12-06
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Granted: 1998-10-06
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Expires: 2016-12-06
Abstract
Abstract An emulsion for hair treatment is provided which is characterized by the following: the formulation (I) is composed of a W/O type emulsion, which allows the main agent to be stable, and contains preferably an oil soluble polymer compound for the emulsifier; the formulation (I), upon being mixed with formulation (II), can easily undergo demulsification and a phase inversion into an O/W type emulsion; and the emulsion has adequate viscosity to prevent dripping from the hair and a superior dyeing capability. Also, 2-formulation type oxidation hair dye with an excellent hair dyeing effect is provided by adding isostearyl alcohol.
Inventors
- 👤 Masaaki Yasuda
- 👤 Yasuhiro Arai
- 👤 Fumiaki Matsuzaki
- 👤 Toshio Yanaki
- 👤 Hideo Nakajima
- 👤 Michihiro Yamaguchi
- 👤 Kimio Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:32
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/342; A61K8/72; A61K8/73; A61K8/731; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61Q5/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
72 words
An emulsion for hair treatment comprising a formulation (I) which is a water-in-oil emulsion and contains a main agent selected from the group consisting of a hair dye, a hair bleach, a permanent wave agent and a depilatory in the water phase, and a formulation (II) which, when mixed with said formulation (I), causes a phase inversion of said formulation (I) into an oil-in-water emulsion and/or causes demulsification of said formulation (I).
Claim 2
Dependent Claim
72 words
An emulsion for hair treatment comprising a formulation (I) which is a water-in-oil emulsion and contains a main agent selected from the group consisting of a hair dye, a hair bleach, a permanent wave agent and a depilatory in the water phase, and a formulation (II) which, when mixed with said formulation (I), causes a phase inversion of said formulation (I) into an oil-in-water emulsion and/or causes demulsification of said formulation (I).
Claim 3
Dependent Claim
21 words
The emulsion for hair treatment of claim 1 wherein polar oil is contained in the oil phase of said formulation (I).
Claim 4
Dependent Claim
29 words
The emulsion for hair treatment of claim 2 wherein the aforementioned polar oil is a higher alcohol or ester oil which is in a liquid state at ambient temperatures.
Claim 5
Dependent Claim
16 words
The emulsion for hair treatment of claim 2 wherein the aforementioned polar oil is isostearyl alcohol.
Claim 6
Dependent Claim
19 words
The emulsion for hair treatment of claim 1 wherein aforementioned formulation (I) also contains a water soluble polymer compound.
Claim 7
Dependent Claim
34 words
The emulsion for hair treatment of claim 5 wherein the aforementioned water soluble polymer compound is selected from the group consisting of carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose and cationized cellulose and mixtures thereof.
Claim 8
Dependent Claim
39 words
The emulsion for hair treatment of claim 1, wherein formulation (II) contains a destabilizing agent selected from the group consisting of a lower alcohol, an inorganic salt and a hydrophilic surfactant with an HLB value of 12 or more.
Claim 9
Dependent Claim
85 words
An emulsion for hair treatment comprising a formulation (I) which is a water-in-oil emulsion and contains a main agent comprising an oxidation dye in the water phase and an oil soluble polymer compound in the oil phase, and a formulation (II) which, when mixed with said formulation (I), causes a phase inversion of said formulation (I) into an oil-in-water emulsion and/or causes demulsification of said formulation (I), said formulation (II) containing an oxidizing agent and said emulsion for hair treatment is an oxidation hair dye.
Claim 10
Dependent Claim
85 words
An emulsion for hair treatment comprising a formulation (I) which is a water-in-oil emulsion and contains a main agent comprising an oxidation dye in the water phase and an oil soluble polymer compound in the oil phase, and a formulation (II) which, when mixed with said formulation (I), causes a phase inversion of said formulation (I) into an oil-in-water emulsion and/or causes demulsification of said formulation (I), said formulation (II) containing an oxidizing agent and said emulsion for hair treatment is an oxidation hair dye.
Claim 11
Dependent Claim
21 words
The emulsion for hair treatment of claim 8 wherein polar oil is contained in the oil phase of said formulation (I).
Claim 12
Dependent Claim
24 words
The emulsion for hair treatment of claim 8 wherein the aforementioned oil soluble polymer compound is a single cellulose ether or a mixture thereof.
Claim 13
Dependent Claim
16 words
The emulsion for hair treatment of claim 10 wherein the aforementioned cellulose ether is ethyl cellulose.
Claim 14
Dependent Claim
29 words
The emulsion for hair treatment of claim 9 wherein the aforementioned polar oil is a higher alcohol or ester oil which is in a liquid state at ordinary temperatures.
Claim 15
Dependent Claim
16 words
The emulsion for hair treatment of claim 9 wherein the aforementioned polar oil is isostearyl alcohol.
Claim 16
Dependent Claim
62 words
An oxidation hair dye comprising a formulation (I) which is a water-in-oil emulsion and contains an oxidation dye in the water phase and ethyl cellulose and isostearyl alcohol in the oil phase, and a formulation (II) which, when mixed with said formulation (I), causes a phase inversion of said formulation (I) into an oil-in-water emulsion and/or causes demulsification of said formulation (I).
Claim 17
Dependent Claim
62 words
An oxidation hair dye comprising a formulation (I) which is a water-in-oil emulsion and contains an oxidation dye in the water phase and ethyl cellulose and isostearyl alcohol in the oil phase, and a formulation (II) which, when mixed with said formulation (I), causes a phase inversion of said formulation (I) into an oil-in-water emulsion and/or causes demulsification of said formulation (I).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2001-10-05 | 2002-04-06 | 2002-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-05 | 2006-04-06 | 2006-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-05 | 2010-04-06 | 2010-10-06 | $7700.00 | Window Closed / Lapsed |