Metal oxide-organopolysiloxane hybrid powder and a method for the preparation thereof and a cosmetic composition therewith
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 30, 2006
Grant Date -
Nov 21, 2002
app pub date -
Feb 21, 2002
filing date -
Feb 23, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is to provide a metal oxide.organopolysiloxane hybrid powder, wherein a silicon atom of organopolysiloxane is bonded by covalent bond with a metal atom through an oxygen atom and complicated homogeneously. Titanium and/or zirconium is desirably used as the above mentioned metal atom. Especially, a porous titanium oxide.organopolysiloxane hybrid powder whose specific surface area is larger than 50 m.sup.2/g is desirably used. Said hybrid powder can be produced by generating sol by hydrolysis of metal alkoxide, adding reactive organopolysiloxane to said sol to generate hybrid sol solution, then precipitating it. The method to produce titanium oxide.silica composite by the heat treatment of porous titanium oxide.organopolysiloxane hybrid powder can be also mentioned. By making hybrid, the optical properties of metal oxide powder can be controlled and dispersing ability, dispersing stability, water repellency and hard feeling can be improved. By blending this hybrid powder in cosmetic composition, the cosmetic composition which is excellent at feeling at the actual use, natural makeup, long lasting and ultra violet ray screening effect can be obtained.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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