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. 16, 2011
Filed:
Feb. 06, 2007
Jürg Haase, Bettingen, CH;
Stefan Müller, Weil am Rhein, DE;
Thomas Ehlis, Freiburg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Disclosed are hydroxyphenylbenzophenone derivatives of formula (1), wherein Rand Rindependently from each other are hydrogen; C-Calkenyl; C-Ccycloalkyl; or Rand Rtogether with the linking nitrogen atom form a 5- 6-membered heterocyclic ring; R, Rand Rindependently from each other are C-Calkyl; C-Calkoxy; or a radical of formula (1a) Ris C-Calkyl; and A is a straight-chain or branched C-Calkylene, which is optionally interrupted by one or more *—O—*, or *—O—(CO)—* groups; and m is 0; or a number from 1 to 5. The compounds are useful as cosmetic UV filters with outstanding solubility properties in cosmetic oils.