Hair Colorants with Indigoid Vat Dyes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 25, 2008
app pub date -
Nov 24, 2004
filing date -
Mar 26, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The agent for coloring hair contains at least one indigoid vat dye, at least one cationic compound, and as reducing agent at least one compound which in a strongly alkaline medium forms an enediol. In the method of coloring hair the pre-reduced indigoid vat dye and the cationic compound are applied to the hair and allowed to act on the hair at a pH of 4 to 11, preferably under protection from atmospheric oxygen. Then the vat dye is re-oxidized with atmospheric oxygen or an oxidant, such as hydrogen peroxide.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully