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. 02, 2026
Filed:
May. 14, 2021
Applicant:
Arkema France, Colombes, FR;
Inventors:
Martin Herblot, Serquigny, FR;
Julien Jouanneau, Pierre-Benite Cedex, FR;
Guillaume Le, Serquigny, FR;
Assignee:
ARKEMA FRANCE, Puteaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 311/86 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
C07D 311/86 (2013.01); C09K 11/06 (2013.01); C09K 2211/1018 (2013.01);
Abstract
A xanthene derivative of formula I or of formula II, which may be useful as a chromophore, as a free-radical generator, or as an adhesion promoter and/or coupling agent. A mixture including the xanthene derivative of formula I or of formula II. A process for preparing the xanthene derivative process involving reacting a compound of formula (III) with a compound of formula (IVa) or (IVb), in the presence of a Lewis acid. A process for preparing the mixture including the xanthene derivative of formula I or of formula II.