Hair dye composition
US7211116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Oct 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided are a hair bleach composition, hair dye composition and a hair treatment additive having excellent bleaching power, capable of dyeing the hair with a bright and good color, and less damaging to the hair and less irritating to the scalp.Described specifically, they are a two-part hair bleach composition, which contains (a) a nitrogenous compound represented by the following formula (1) or (2):or salt thereof, or (A) a nitrogenous compound having a solubility parameter log P in octanol/water ranging from −1 to 4 and a hydrogen peroxide remaining ratio of from 5 to 90%, or salt thereof, (b) an oxidizing agent, and optionally (c) an alkali agent and, after mixing, has a pH of from 7.5 to 12; a two-part hair dye composition comprising (a) or (A), (b) and (c) and further (d) an oxidation dye or direct dye; and an additive used therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.