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:
Apr. 10, 2018
Filed:
Sep. 11, 2014
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
David G. Barton, Midland, MI (US);
Gerolamo Budroni, Terneuzen, NL;
Steven L. F. Corthals, Wachtebeke, BE;
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/343 (2006.01); C07C 67/38 (2006.01); B01J 27/043 (2006.01); B01J 27/045 (2006.01);
U.S. Cl.
CPC ...
C07C 67/343 (2013.01); B01J 27/043 (2013.01); B01J 27/045 (2013.01); C07C 67/38 (2013.01);
Abstract
Alkyl alkanoates, e.g., methyl propionate, are made by a gas phase process comprising the step of contacting under carbonylation conditions an alkene (e.g., ethylene), carbon monoxide, an alkanol (e.g., methanol), and a solid sulfide-based metal catalyst (e.g., iron sulfide). The alkyl alkanoate can be converted in a second step to an alkyl ester of an aliphatic carboxylic acid, e.g., methyl methacrylate, through condensation with an aldehyde, e.g., formaldehyde.