Patent · US Active

Surface-modified metal oxides prepared by precipitation in the presence of a copolymer having N-vinylamide units, production processes and use thereof in cosmetic preparations

US7666506B2 · kind B2 · utility

13Cited by

5References

20Claims

0Family size

Assignee

BASF SE

Inventors

Jens Rieger · Forchheim, DE
Jutta Kissel · Herxheim, DE
Valerie Andre · Ludwigshafen, DE
Nathalie Bouillo · Baden-Baden, DE

Key dates

Filing date	May 30, 2006
Grant date	Feb 23, 2010
Priority date	—
Expiry date	Jan 6, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to surface-modified nanoparticulate metal oxides where the metal is chosen from the group consisting of aluminum, cerium, iron, titanium, zinc and zirconium, wherein the surface modification comprises a coating with a copolymer P comprising, as monomers,

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.