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:
Aug. 02, 2011
Filed:
Mar. 23, 2005
Applicants:
Alexander Poschalko, Birsfelden, CH;
Ulrich Huber, Erlenbach, CH;
Volker Schehlmann, Schopfheim, DE;
Inventors:
Alexander Poschalko, Birsfelden, CH;
Ulrich Huber, Erlenbach, CH;
Volker Schehlmann, Schopfheim, DE;
Assignee:
DSM IP Assets B.V., Heerlen, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/72 (2006.01); A61K 8/85 (2006.01); A61K 8/86 (2006.01); A61Q 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a conjugate comprising a hyperbranched polymer covalently bonded to at least three UV absorbing chromophores having an UV absorption maximum λ≧270 nm. The conjugate is an effective and safe sunscreen which can advantageously be used in cosmetic compositions.