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:
Oct. 26, 2004
Filed:
Aug. 12, 2002
Applicant:
Inventors:
Michael Tinkl, Grenzach-Wyhlen, DE;
Oliver Dosenbach, Bad Bellingen, DE;
Peter Nesvadba, Marly, CH;
Martin Wolff, Grenzach-Wyhlen, DE;
Bruno Rotzinger, La Tour de Peliz, CH;
Dietmar Mäder, Freiburg, DE;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; G03C 5/54 ;
U.S. Cl.
CPC ...
C07D / ; G03C 5/54 ;
Abstract
The invention describes novel compounds of the formula (I) wherein the general symbols are as defined in claim (1) and R is an aromatic radical with electron withdrawing substituents, as stabilizers for protecting organic materials, in particular polymers and lubricants, against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.