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EP1813254A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Hair bleach composition and hair dye composition

Assignee: Kao Corp
•
Filing: 2001-12-19
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Granted: —
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Expires: 2021-12-19
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Abstract

Abstract The invention provides a bleach composition or a dye composition for hair which, during use, includes a mixture of a first composition containing an alkali agent and a second composition containing an oxidizing agent, the bleach or dye composition containing (A) an organic solvent having a partition coefficient (octanol-water) (log P) at 25°C of 0.3-6 and a molecular weight of 200 or less, in an amount of 1-70 wt.%; (B) an organic solvent having a log P of less than 0.3, in an amount of 0-8 wt.% and less than that of component (A); (C) an alkali agent in an amount of 0.1-10 wt.%; (D) an oxidizing agent in an amount of 0.1-12 wt.% as reduced to H 2 O 2 ; (E) water in an amount of 20-70 wt.%, and (F) a cationic surfactant in an amount of 0.01-10 wt.%, and has a pH of 7.5-12 after mixing of the first composition and the second composition. The bleach or dye composition provides less offensive odor; exhibit excellent hair-bleaching power and hair-dyeing power; and exhibit excellent hair-conditioning effect during and after treatment.

Inventors

  • 👤 Takashi Matsuo
  • 👤 Hajime Miyabe
  • 👤 Yutaka Shibata
  • 👤 Yoshiaki Ito
  • 👤 Keij Monda
  • 👤 Daisuke Misu

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 20:47
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/19; A61K8/22; A61K8/25; A61K8/49; A61K8/4906; A61K8/4926; A61K8/72; A61K8/73; A61K8/731; A61K8/738; A61K8/84; A61K8/86; A61Q; A61Q5/00; A61Q5/08; A61Q5/10; A61K2800/00; A61K2800/80; A61K2800/88

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 162 words
A bleach composition or a dye composition for hair which, during use, comprises a mixture of a first composition containing an alkali agent and a second composition containing an oxidizing agent, the bleach or dye composition comprising the following components (A) to (F): (A) an organic solvent having a partition coefficient (octanol-water) (log P) at 25°C of 0.3-6 and a molecular weight of 200 or less, in an amount of 1-70 wt.%; (B) an organic solvent having a partition coefficient (octanol-water) (log P) at 25°C of less than 0.3, in an amount of 0-8 wt.% and less than that of component (A); (C) an alkali agent in an amount of 0.1-10 wt.%; (D) an oxidizing agent in an amount of 0.1-12 wt.% as reduced to hydrogen peroxide; (E) water in an amount of 20-70 wt.%, and (F) a cationic surfactant in an amount of 0.01-10 wt.%, and has a pH of 7.5-12 after mixing of the first composition and the second composition.
Claim 2
Dependent Claim 20 words
A hair dye composition according to claim 1, further comprising (G) an oxidation-type dye intermediate or (H) a direct dye.
Claim 3
Dependent Claim 30 words
A bleach composition or a dye composition for hair according to claim 1, or 2 containing ammonia serving as component (C) in an amount of 0-3 wt.% the entire composition.

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