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:
May. 28, 2019
Filed:
Mar. 07, 2018
Applicants:
The Procter & Gamble Company, Cincinnati, OH (US);
Friedrich Alexander Universitat Erlangen-nurnberg, Erlangen, DE;
Inventors:
Jakob Albert, Erlangen, DE;
Peter Wasserscheid, Erlangen, DE;
Nicola Taccardi, Erlangen, DE;
Jens Nagengast, Erlangen, DE;
Matthias Kehrer, Erlangen, DE;
Julian Kadar, Erlangen, DE;
Dimitris Ioannis Collias, Mason, OH (US);
Assignees:
The Procter & Gamble Company, Cincinnati, OH (US);
Friedrich Alexander Universitat Erlangen-Nurnberg, Erlangen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/377 (2006.01); C07C 51/363 (2006.01); B01J 31/02 (2006.01);
U.S. Cl.
CPC ...
C07C 51/377 (2013.01); B01J 31/0298 (2013.01); C07C 51/363 (2013.01); Y02P 20/582 (2015.11);
Abstract
A method of making acrylic acid in liquid phase by contacting a feed stream containing lactic acid, lactide, or mixtures thereof with a molten salt catalyst comprising a protic ionic liquid (PIL), which contains a bromide anion (Br), is provided.