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:
Mar. 04, 2008
Filed:
Sep. 23, 2003
Applicants:
Georges Fremy, Sauveterre de Bearn, FR;
Nadine Essayem, Saint-Just Chaleyssin, FR;
Michel Lacroix, Lyons, FR;
Elodie Zausa, Targon, FR;
Inventors:
Georges Fremy, Sauveterre de Bearn, FR;
Nadine Essayem, Saint-Just Chaleyssin, FR;
Michel Lacroix, Lyons, FR;
Elodie Zausa, Targon, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 319/04 (2006.01); C07C 321/04 (2006.01); C07B 45/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The process for preparing a mercaptan from an olefin and hydrogen sulphide is carried out in the presence of hydrogen and a catalyst composition comprising a strong acid, such as a heteropolyacid, and at least one metal belonging to group VIII of the Periodic Table.