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:
Nov. 27, 2018
Filed:
May. 09, 2016
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Thomas Schaub, Neustadt, DE;
Nuria Huguet Subiela, Heidelberg, DE;
Rocco Paciello, Bad Duerkheim, DE;
Donata Maria Fries, Mannheim, DE;
Simone Manzini, Certosa di Pavia, IT;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/15 (2006.01); C07C 51/48 (2006.01); B01J 31/24 (2006.01);
U.S. Cl.
CPC ...
C07C 51/15 (2013.01); B01J 31/24 (2013.01); C07C 51/48 (2013.01);
Abstract
A catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt from an alkene, carbon dioxide and an alkoxide having a secondary or tertiary carbon atom directly bound to a [O] group is described. The alcohol byproduct is distilled off after an intermediate phase separation. This provides pure β,β-ethylenically unsaturated carboxylic acid salt at minimum effort.