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:
May. 30, 2017
Filed:
Jun. 06, 2014
Basf SE, Ludwigshafen, DE;
Barbara Winkler, Lörrach, DE;
Oliver Reich, Limburgerhof, DE;
Alexander Mantler, Rheinfelden-Karsau, DE;
Reinhold Ohrlein, Rheinfelden-Herten, DE;
Walter Fischer, Reinach, DE;
Albert Schneider, Grenzach-Wyhlen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Disclosed is the use of benzotropolone derivatives of formula whereinR, Rand Rindependently from each other are hydrogen; C-Calkyl; or COR;Ris hydrogen; or COORRis hydrogen; or C-Calkyl;Ris hydrogen; hydroxy; C-C-alkoxy; or —O—(CO)—R;Ris hydrogen; C-Calkyl; or COR; orRand Rtogether may form a five or six membered ring; orRand Rtogether form a five or six membered ring; andR, R, Rindependently of each other are C-Calkyl;for protecting body-care and household products from photolytic and oxidative degradation.