EP0552024A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cosmetic composition with enhanced deposition of cosmetic agents
Assignee: Unilever PLC
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Filing: 1993-01-13
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Granted: —
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Expires: 2013-01-13
Abstract
Abstract A rinse-off cleansing composition including one or more surfactant-soluble cosmetic agents for deposition onto hair or skin, the composition comprising a stable emulsion having a continuous phase comprising one or more surfactants and an internal phase comprising one or more oil materials, wherein the internal oil phase contains the said one or more surfactant-soluble cosmetic agents. The use of the oil phase to dissolve the one or more surfactant-soluble cosmetic agents reduces the degree of solubilization of the cosmetic agent into micelles of surfactant in the surfactant-comprising continuous phase, such that deposition of the cosmetic agent onto a surface such as hair or skin is enhanced. Preferred cosmetic agents are oil sunscreens and preferred oil materials for use in the internal phase include phenylsilicones, mineral oil and organic oils.
Inventors
- 👤 David Howard Birtwistle
- 👤 Michael John Parkington
- 👤 Gerald Joseph O'shea
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 03:53
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/92; A61K8/02; A61K8/04; A61K8/06; A61Q19/00; A61Q19/10; A61Q5/00; A61Q5/02; A61K8/72; A61K8/73; A61K8/731
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
56 words
A rinse-off cleansing composition including one or more surfactant-soluble cosmetic agents for deposition onto hair or skin, the composition comprising a stable emulsion having a continuous phase comprising one or more surfactants and an internal phase comprising one or more oil materials, wherein the internal oil phase contains the said one or more surfactant-soluble cosmetic agents.
Claim 2
Dependent Claim
39 words
A cleansing composition according to claim 1, wherein the cosmetic agent is a surfactant-soluble material selected from: sunscreen materials, after-sun treatment materials, occlusive oils, emollients, humectants, therapeutic and essential oils, perfumes, antiperspirants, moisturisers, colour cosmetic materials and mixtures thereof.
Claim 3
Dependent Claim
16 words
A cleansing composition according to claim 2, wherein the cosmetic agent is a surfactant-soluble sunscreen material.
Claim 4
Dependent Claim
27 words
A cleansing composition according to any one of claims 1 to 3, wherein the oil material is a solvent for the said one or more cosmetic agents.
Claim 5
Dependent Claim
14 words
A cleansing composition according to claim 4, wherein the oil material is substantially surfactant-insoluble.
Claim 6
Dependent Claim
18 words
A cleansing composition according to claim 4 or claim 5, wherein the oil material is a silicone oil.
Claim 7
Dependent Claim
15 words
A cleansing composition according to claim 6, wherein the silicone oil is selection from phenylsilicones.
Claim 8
Dependent Claim
22 words
A cleansing composition according to claim 4 or claim 5, wherein the oil material is selected from mineral oil and organic oils.
Claim 9
Dependent Claim
36 words
A cleansing composition according to any preceding claim, which is in the form of a hair or body shampoo and contains surfactant in a total amount of from 5 to 40% by weight of the composition.
Claim 10
Dependent Claim
13 words
A cleansing composition according to any preceding claim, further comprising a conditioning agent.
Claim 11
Dependent Claim
20 words
A cleansing composition according to any preceding claim, further comprising a deposition aid for the one or more cosmetic agents.
Claim 12
Dependent Claim
25 words
A cleansing composition according to claim 11, wherein the deposition aid is selected from cationic derivatives of guar gum and quaternary nitrogen-substituted cellulose ether derivatives.
Claim 13
Dependent Claim
105 words
A process for preparing a rinse-off cleansing composition including one or more surfactant-soluble cosmetic agents for deposition onto hair or skin, the process comprising: (i) dissolving the one or more cosmetic agents in one or more oil materials; (ii) emulsifying the resulting solution with a phase comprising one or more surfactants to form a stable emulsion having a continuous phase comprising said one or more surfactants and an internal phase comprising said solution of one or more cosmetic agents in said one or more oil materials; and (iii) optionally adding to the emulsion one or more additional ingredients for forming the said rinse-off cleansing composition.
Claim 14
Dependent Claim
61 words
A stable emulsion for use in the preparation of a rinse-off cleansing composition including one or more surfactant-soluble cosmetic agents for deposition onto hair or skin, the emulsion comprising a continuous phase comprising one or more surfactants and an internal phase comprising one or more oil materials, wherein the internal oil phase contains the said one or more surfactant-soluble cosmetic agents.
Claim 15
Dependent Claim
28 words
An emulsion according to claim 14, wherein the continuous phase comprises one or more surfactants in an amount of from 0.1 to 50% by weight of the emulsion.
Claim 16
Dependent Claim
28 words
An emulsion according to claim 14 or claim 15, wherein the continuous phase comprises water in an amount of from 0.01 to 99% by weight of the emulsion.
Claim 17
Independent Claim
71 words
A method of facilitating and/or enhancing deposition of one or more surfactant-soluble cosmetic agents from a rinse-off cleansing composition, the method comprising providing the said one or more cosmetic agents in an internal oil phase of a stable emulsion, the emulsion having a continuous phase comprising one or more surfactants and an internal phase comprising one or more oil materials in which is contained the said one or more cosmetic agents.
Claim 18
Dependent Claim
63 words
Use of one or more oil materials for enhancing deposition of one or more surfactant-soluble cosmetic agents from a rinse-off cleansing composition onto hair or skin, wherein the said one or more cosmetic agents are contained in said one or more oil materials which form an internal phase of a stable emulsion, the emulsion having a continuous phase comprising one or more surfactants.
References Cited (Backward Citations)
No citation records indexed.
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