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:
Jul. 19, 2016
Filed:
Jan. 08, 2014
Applicant:
Shell Oil Company, Houston, TX (US);
Inventor:
Jean-Paul Lange, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/353 (2006.01); C07C 51/235 (2006.01); C07C 45/52 (2006.01);
U.S. Cl.
CPC ...
C07C 51/353 (2013.01); C07C 45/52 (2013.01); C07C 51/235 (2013.01);
Abstract
The invention relates to a process for producing methacrylic acid, comprising: converting a C3-oxygenate into propanoic acid, wherein said C3-oxygenate is a compound selected from the group consisting of 1-propanol, monopropylene glycol, monohydroxyacetone, 2-hydroxypropanal, glycerol and dihydroxyacetone; and reacting the propanoic acid with formaldehyde or a precursor of formaldehyde into methacrylic acid. Said C3-oxygenate preferably contains 2 oxygen atoms, and most preferably it is monopropylene glycol.