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:
Jun. 28, 2016
Filed:
Apr. 17, 2012
Applicants:
Cedric Klein, Herrlisheim-Près-Colmar, FR;
Frederic Reveaud, Mulhouse, FR;
Andrew Clive Jackson, Muenchenstein BL, CH;
David Atkinson, Arlesheim BL, CH;
Inventors:
Cedric Klein, Herrlisheim-Près-Colmar, FR;
Frederic Reveaud, Mulhouse, FR;
Andrew Clive Jackson, Muenchenstein BL, CH;
David Atkinson, Arlesheim BL, CH;
Assignee:
CLARIANT INTERNATIONAL LTD, Muttenz, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 251/68 (2006.01); C11D 3/42 (2006.01); D21H 21/30 (2006.01); C07D 251/54 (2006.01); C07D 251/44 (2006.01); C07D 251/50 (2006.01);
U.S. Cl.
CPC ...
C07D 251/54 (2013.01); C07D 251/44 (2013.01); C07D 251/50 (2013.01); C07D 251/68 (2013.01); C11D 3/42 (2013.01); D21H 21/30 (2013.01);
Abstract
The instant invention relates to novel water soluble bis-(triazinylamino)-stilbene optical brightening agents, a process for their preparation and their use for whitening natural and synthetic materials.