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:
Oct. 20, 1998
Filed:
Jun. 19, 1996
Applicant:
Inventor:
Michel Alas, Melle, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie Cedex, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C12P / ;
U.S. Cl.
CPC ...
562895 ; 568355 ; 435126 ;
Abstract
The present invention relates to a novel process for the preparation of citraconic anhydride. More precisely, the invention relates to a process for the preparation of citraconic anhydride from a starting material comprising itaconic acid. The process for the preparation of citraconic anhydride may be performed continuously starting from itaconic acid, or continuously or in a batchwise manner starting directly from a fermentation broth of itaconic acid or of by-products from the manufacture of itaconic acid.
Alas, Michel. (1998). Process for the preparation of citraconic anhydride (U.S. Patent No. 5824820). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5824820
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile