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:
Sep. 22, 2015
Filed:
Nov. 08, 2013
Applicant:
Eastman Chemical Company, Kingsport, TN (US);
Inventors:
Phillip Wayne Turner, Blountville, TN (US);
Steven Leroy Cook, Kingsport, TN (US);
Anthony Gerard Barrett, Rio de Janeiro, BR;
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 51/265 (2006.01); C07C 67/08 (2006.01);
U.S. Cl.
CPC ...
C07C 67/08 (2013.01); C07C 51/265 (2013.01);
Abstract
The invention is directed to a process for preparing a terephthalic acid di-ester. The process includes contacting terephthalic acid with a C-Calcohol in the presence of an organo-titanium catalyst and an alcohol-amine promoter under conditions effective to form a corresponding terephthalic acid di-ester. The promoter can improve the reaction time by as much as 50%.