§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
EP1291006B1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Hair bleach or hair dye

Assignee: Kao Corp
•
Filing: 2001-06-08
•
Granted: 2007-08-15
•
Expires: 2021-06-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An oxidation-type hair bleach or dye which is composed of a first lotion containing an alkali agent and a second lotion containing an oxidizing agent, contains the following components (A), (B), (C), and (D) in amounts described below based on the whole of the mixture of the first lotion with the second one, and has a pH of 8 to 12: a water-compatible organic solvent exhibiting an octanol-water partition coefficient (logP) of 0.3 or above at 25°C and having a molecular weight of 200 or below: 8 to 40 wt%, an alkali agent: 0.1 to 10 wt%, an oxidizing agent: 0.1 to 12 wt% in terms of hydrogen peroxide, and water: 25 to 70 wt%. This hair bleach or dye has a high bleaching power, can dye the hair in a good bright color, and is lowered in the irritant stench and the irritation to the scalp.

Inventors

  • 👤 Takashi Matsuo
  • 👤 Hajime Miyabe
  • 👤 Yutaka Shibata

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 16:36
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/22; A61K8/30; A61K8/33; A61K8/39; A61K8/46; A61K8/463; A61Q; A61Q5/00; A61Q5/08; A61Q5/10; A61K2800/00; A61K2800/80; A61K2800/88

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 128 words
An oxidative hair bleach or hair dye comprising a first pack with an alkalizing agent contained therein and a second pack with an oxidizing agent contained therein, wherein said oxidative hair bleach or hair dye comprises the following ingredients (A),(B), (C) and (D) in the following proportions in a whole composition after mixing said first pack and said second pack together, and has a pH of from 8 to 12: (A) a water-miscible organic solvent having an octanol-water distribution coefficient (log P) at 25°C of 0.8 to 1.3 a molecular weight of 200 or lower: 8 to 40 wt.% (B) said alkalizing agent: 0.1 to 10 wt.% (C) said oxidizing agent: 0.1 to 12 wt.% as calculated in terms of hydrogen peroxide (D) water: 25 to 60 wt.%.
Claim 2
Dependent Claim 42 words
A bleach or dye according to claim 1, further comprising, as an ingredient (E), an anionic surfactant or ampholytic surfactant in a proportion of 60 wt.% or less in said whole composition after mixing said first pack and said second pack together.
Claim 3
Dependent Claim 41 words
A bleach or dye according to claim 1 or 2, further comprising, as an ingredient (F), a quaternized-nitrogen-atom-containing polymer in a proportion of 2.5 wt.% or less in said whole composition after mixing said first pack and said second pack together.
Claim 4
Independent Claim 27 words
A method for bleaching or dyeing hair, which comprises applying to said hair a bleach or dye according to any one of claims 1, 2 and 3.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag