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. 26, 2016
Filed:
Dec. 05, 2014
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Timothy A. Brandvold, Arlington Heights, IL (US);
Avram M. Buchbinder, Chicago, IL (US);
Nancy Iwamoto, Ramona, CA (US);
Hayim Abrevaya, Kenilworth, IL (US);
Phuong T. M. Do, Des Plaines, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/09 (2006.01); C07C 67/04 (2006.01); C07D 307/68 (2006.01);
U.S. Cl.
CPC ...
C07C 51/09 (2013.01); C07C 67/04 (2013.01); C07D 307/68 (2013.01);
Abstract
A process of making terephthalic acid or a derivative of terephthalic acid is described. The process includes reacting a derivative of 2,5-dimethylfuran, with a dienophile containing an unsaturated 2-carbon unit, in the presence of a catalyst having Brönsted acidity to form a para-xylene derivative; and optionally reacting the para-xylene derivative to terephthalic acid.