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. 26, 2015
Filed:
May. 31, 2006
Applicants:
Walter Fischer, Reinach, CH;
Abdel-ilah Basbas, Basel, CH;
Mara Destro, Bologna, IT;
Manuele Vitali, Bologna, IT;
Dario Lazzari, Bologna, IT;
Mirko Rossi, San Lazzaro di Savena, IT;
Inventors:
Walter Fischer, Reinach, CH;
Abdel-Ilah Basbas, Basel, CH;
Mara Destro, Bologna, IT;
Manuele Vitali, Bologna, IT;
Dario Lazzari, Bologna, IT;
Mirko Rossi, San Lazzaro di Savena, IT;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 69/95 (2006.01); C07D 209/58 (2006.01); C07D 307/77 (2006.01); C07C 317/24 (2006.01); C07C 323/52 (2006.01); C09K 9/02 (2006.01); C07C 317/44 (2006.01); C07C 323/22 (2006.01);
U.S. Cl.
CPC ...
C07C 69/95 (2013.01); C07C 317/24 (2013.01); C07C 317/44 (2013.01); C07C 323/22 (2013.01); C07C 323/52 (2013.01); C07C 2103/44 (2013.01); C07D 209/58 (2013.01); C07D 307/77 (2013.01); C09K 9/02 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01);
Abstract
The present invention pertains to a reversibly thermochromic system comprising a substituted or an unsubstituted 6,11-dihydroxy-naphthacene-5,12-dione and a base and to a reversibly thermochromic composition comprising the reversibly thermochromic system and a carrier material and to novel substituted 6,11-dihydroxy-naphthacene-5,12-diones.