The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2007
Filed:
Mar. 09, 2005
Applicants:
Valerie Andre, Ludwigshafen, DE;
Richard W. Brotzman, Jr., Naperville, IL (US);
Inventors:
Valerie Andre, Ludwigshafen, DE;
Richard W. Brotzman, Jr., Naperville, IL (US);
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
A61Q 17/04 (2006.01); A61Q 17/00 (2006.01); A61Q 19/00 (2006.01); A61K 8/00 (2006.01); A61K 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to the formation of surface treated zinc oxide and titania particles, and in particular zinc oxide and titania nanoparticles, with a siloxane star-graft copolymer coating, comprising a looped and/or linear polymeric structure on a star-graft copolymer coating, on a particle surface to control the interfacial surface interactions between the particle and the oil phase of the cosmetic skin formulation.