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. 19, 2018
Filed:
Dec. 16, 2013
Applicant:
Arkema France, Colombes, FR;
Inventors:
Alain F. Riondel, Saint Pathus, FR;
Coralie Graire, Grezieu-la-Varenne, FR;
Marc Esch, Theding, FR;
Andre Levray, Porcelette, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/03 (2006.01); C07C 67/54 (2006.01); C07C 213/06 (2006.01); C07C 219/08 (2006.01); C07C 69/54 (2006.01);
U.S. Cl.
CPC ...
C07C 67/03 (2013.01); C07C 67/54 (2013.01); C07C 213/06 (2013.01); Y02P 20/582 (2015.11);
Abstract
The invention relates to the production of alkyl acrylate according to a continuous transesterification process. In one embodiment the process of the invention uses a simple column to purify a reaction mixture of acryl acrylate in one step yielding alkyl acrylate with a purity of greater than 99.8%.