Patent EP0407089A2 successfully refreshed from Google Patents.
EP0407089A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cosmetic composition
Assignee: Unilever PLC
•
Filing: 1990-06-27
•
Granted: —
•
Expires: 2010-06-27
Abstract
Abstract A water-in-silicone oil transparent emulsion is made from a volatile polydimethylsiloxane (1 to 50% by weight), a silicone surfactant (0.1 to 20% by weight), at least one polyhydric alcohol (1 to 50% by weight) and water. The silicone surfactant comprises a polymer of dimethyl polysiloxane with polyoxyethylene and/or polyoxypropylene side chains having a molecular weight of from 10,000 to 50,000 and having the structure: a having a value of from 9 to 115, b having a value of from 0 to 50, x having a value of from 133 to 673, y having a value of from 25 to 0.25.
Inventors
- 👤 Mavis Claire Pereira
- 👤 Udo Spiegel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 22:34
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/30; A61K8/58; A61K8/585; A61K8/02; A61K8/04; A61K8/06; A61K8/064; A61K8/33; A61K8/36; A61K8/365; A61K8/891; A61K8/894; A61Q; A61Q19/00; A61Q5/00; A61K2800/00; A61K2800/20; A61K2800/26; A61K2800/262
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
124 words
A water-in-silicone oil transparent emulsion, suitable for topical application to mammalian skin or hair, which comprises, in addition to water; i. from 1 to 50% by weight of a volatile polydimethylsiloxane; ii. from 0.1 to 20% by weight of a silicone surfactant ingredient comprising a a polymer of dimethyl polysiloxane with polyoxyethylene and/or polyoxypropylene side chains having a molecular weight of from 10,000 to 50,000 and having the structure: a having a value of from 9 to 115, b having a value of from 0 to 50, x having a value of from 133 to 673, y having a value of from 25 to 0.25, and iii. from 1 to 50% by weight of a transparency structurant which is at least one polyhydric alcohol.
Claim 2
Dependent Claim
124 words
A water-in-silicone oil transparent emulsion, suitable for topical application to mammalian skin or hair, which comprises, in addition to water; i. from 1 to 50% by weight of a volatile polydimethylsiloxane; ii. from 0.1 to 20% by weight of a silicone surfactant ingredient comprising a a polymer of dimethyl polysiloxane with polyoxyethylene and/or polyoxypropylene side chains having a molecular weight of from 10,000 to 50,000 and having the structure: a having a value of from 9 to 115, b having a value of from 0 to 50, x having a value of from 133 to 673, y having a value of from 25 to 0.25, and iii. from 1 to 50% by weight of a transparency structurant which is at least one polyhydric alcohol.
Claim 3
Dependent Claim
14 words
An emulsion according to claim 1, in which the volatile polydimethylsiloxane is polydimethylcyclosiloxane (tetramer).
Claim 4
Dependent Claim
14 words
An emulsion according to claim 1 in which the volatile polydimethysiloxane is polydimethylcyclosiloxane (pentamer).
Claim 5
Dependent Claim
65 words
An emulsion according to any preceding claims, in which the silicone, surfactant is one in which: a has a value of from 10 to 114 b has a value of from 0 to 49 x has a value of from 388 to 402 and y has a value of from 15 to 0.75; the group R having a molecular weight of from 1000 to 5000.
Claim 6
Dependent Claim
37 words
An emulsion according to any preceding claim, in which the silicone surfactant is one in which: a has the value 14 b has the value 13 x has the value 249, and y has the value 1.25
Claim 7
Dependent Claim
22 words
An emulsion according to any preceding claim in which the polylhydric alcohol is chosen from those having 3 to 8 carbon atoms.
Claim 8
Dependent Claim
22 words
An emulsion according to claim 6 in which the polyhydric alcohol is chosen from those having from 4 to 6 carbon atoms.
Claim 9
Dependent Claim
13 words
An emulsion according to claim 7, in which the polyhydric alcohol is sorbitol.
Claim 10
Dependent Claim
19 words
An emulsion according to any one of claims 1 to 5 in which the polyhydric alcohol is polyethylene glycol.
Claim 11
Dependent Claim
27 words
An emulsion according to any preceding claim, which further comprises, as a skin and/or hair benefit substance, a 2-hydroxyalkanoic acid having from 3 to 28 carbon atoms.
Claim 12
Dependent Claim
14 words
An emulsion according to claim 10, in which the 2-hydroxyalkanoic acid is 2-hydroxyoctanoic acid.
Claim 13
Dependent Claim
59 words
An emulsion according to any preceding claim, which further comprises an acid-soap complex of a 2-hydroxyalkanoic acid having the structure (1): (C m H 2m-½ O₃) (C n H 2n-½ O₃) M where m and n have the same or different values, and each is an integer of from 6 to 28, and where M is a monovalent ion.
Claim 14
Dependent Claim
16 words
An emulsion according to claim 12, in which the acid-soap complex has the empirical formula: C₁₆H₃₁O₆Na.
Claim 15
Dependent Claim
13 words
An emulsion according to any preceding claim, which further comprises a non-volatile siloxane.
Claim 16
Dependent Claim
13 words
An emulsion according to any preceding claim, which further comprises an antiperspirant agent.
Claim 17
Dependent Claim
28 words
An emulsion according to any preceding claim, which further comprises a skin and/or hair benefit substance chosen from sunscreen agents, natural moisturising factor substances and hair growth promoters.
Claim 18
Dependent Claim
14 words
Cosmetic use of an emulsion according to any one of claims 1 to 16.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.