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EP0551748A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Hair treatment composition

Assignee: Unilever PLC
•
Filing: 1992-12-17
•
Granted: —
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Expires: 2012-12-17
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Abstract

Abstract A hair treatment composition is provided that includes a water-insoluble, dispersible polymeric resin having a viscosity of less than 2 centipoise at 25 DEG C when dispersed at 10% in water; a water-soluble polymeric resin having a viscosity greater than 6 centipoise at 25 DEG C when 10% is placed in water; and a water-soluble polymer of molecular weight greater than about 500,000. Illustrative of the water-insoluble resin is a diglycol/cyclohexanedimethanol/isophthalates/ sulphoisophthalates polyester. Preferably the water-soluble polymeric resin is a copolymer of polyvinylpyrrolidone and vinyl acetate. The preferred water-soluble polymer is polyvinylpyrrolidone, especially a polymer having molecular weight of around 630,000.

Inventors

  • 👤 G. Jae Lee
  • 👤 Paul Vinski

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 14:24
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/88; A61K8/81; A61K8/817; A61K8/8176; A61K8/8182; A61K8/85; A61Q; A61Q5/00; A61Q5/06; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; Y; Y10; Y10S; Y10S424/00; Y10S424/01

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 96 words
An aqueous hair treatment composition comprising: (i) a water-insoluble, dispersible polymeric resin having a viscosity of less than about 2 centipoise at 25°C when 10% is dispersed in water, present in an amount from about 0.5 to about 10% by weight; (ii) a water-soluble polymeric resin having a viscosity greater than about 6 centipoise at 25°C when 10% is placed in water, present in an amount from about 0.5 to about 10% by weight; and (iii) polyvinyl pyrrolidone of molecular weight greater than 500,000 present in an amount from about 0.05 to about 0.2% by weight.
Claim 2
Dependent Claim 43 words
A composition according to claim 1 wherein said water-insoluble, dispersible polymeric resin is a polyester formed from a combination of at least one dicarboxylic acid, at least one diol, and at least one difunctional monomer containing a sulpho group on an aromatic nucleus.
Claim 3
Dependent Claim 17 words
A composition according to claim 2 wherein said water-insoluble, dispersible polymeric resin is a diglycol/cyclohexanedimethanol/isophthalates/ sulphoisophthalates polyester.
Claim 4
Dependent Claim 19 words
A composition according to claim 1 wherein said water-soluble polymeric resin is a copolymer of polyvinylpyrrolidone and vinyl acetate.
Claim 5
Dependent Claim 23 words
A composition according to claim 1 further comprising a C₁₀-C₂₀ fatty acid ester present in an effective amount to provide luster to hair.
Claim 6
Dependent Claim 24 words
A composition according to claim 5 wherein said ester is cetearyl octanoate present in an amount from about 0.001 to about 0.5% by weight.
Claim 7
Dependent Claim 21 words
A composition according to claim 1 wherein water is present in an amount from about 10 to about 99% by weight.
Claim 8
Dependent Claim 21 words
A composition according to claim 1 wherein weight percent ratio of (i) to (ii) ranges from about 87:13 to about 67:33.
Claim 9
Dependent Claim 25 words
A composition according to claim 1 wherein said composition when sprayed has spray particles of median particle size from about 35 to about 48 µm.
Claim 10
Dependent Claim 22 words
A composition according to claim 1 wherein less than 8% of spray particles forming said composition have a size under 10.5 µm.

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