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. 09, 2006
Filed:
Apr. 18, 2002
Applicants:
Yannick Quesnel, Lasne, BE;
Richard Flacher, Lyons, FR;
Inventors:
Yannick Quesnel, Lasne, BE;
Richard Flacher, Lyons, FR;
Assignee:
Adisseo France S.A.S., Antony, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/27 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of an xanthophyll, and in particular to a process for the preparation of an xanthophyll through the oxidation of a carotenoid in the presence of hydrogen peroxide and an iodine-containing compound. In particular, the process of the invention applies to the oxidation of beta-carotene to produce canthaxanthin, and to the oxidation of lutein or zeaxanthin to produce astaxanthin.