Process for the preparation of stable aqueous hair dyeing emulsions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 4, 2003
Grant Date -
N/A
app pub date -
Sep 27, 1999
filing date -
Oct 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stable, aqueous hair dyeing emulsion with good Theological properties is prepared, while simultaneously substantially reducing the manufacturing time and energy consumption, comprising at least one oxidation hair dyestuff precursor, by mixing a water-in-oil emulsion, comprising 10% to 50% by weight of at least one nonionic emulsifier, 10% to 50% by weight of at least one nonionic co-emulsifier selected from the group of C.sub.10 -C.sub.22 -fatty alcohols, C.sub.12 -C.sub.18 -fatty acid mono- and dialkanolamides and/or C.sub.10 -C.sub.22 -fatty acid esters with polyvalent alcohols, 5% to 40% by weight of oleic acid, and up to 25%, in particular 20% by weight of water, each calculated to the total w/o-emulsion composition, with an aqueous phase comprising at least one water-soluble surfactant. Mixing is carried out under shear force at 15.degree. to 30.degree. C., preferably at room temperature at about 20.degree. to 25.degree..
First Claim
Family
International Classification(s)
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