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:
Sep. 06, 2005
Filed:
Apr. 09, 2004
Applicants:
Euen Gunn, Trenton, NJ (US);
Jean-christophe Galland, Lyons, FR;
Blaise Didillon, Franchville, FR;
Thomas Delacroix, Lyons, FR;
Inventors:
Euen Gunn, Trenton, NJ (US);
Jean-Christophe Galland, Lyons, FR;
Blaise Didillon, Franchville, FR;
Thomas Delacroix, Lyons, FR;
Assignee:
Rhodia Inc., Cranbury, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D307/60 ;
U.S. Cl.
CPC ...
Abstract
A process for the production of allyl succinic anhydride comprising reacting a mixture of propene with maleic anhydride in the presence of a catalyst comprised of an alkyl tin chloride as provided. The process can be run efficiently at temperatures below about 200° C. without and the formation of polymer or decomposition by-products.