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. 28, 2015
Filed:
Jan. 10, 2012
Applicants:
William Kruper, Jr., Sanford, MI (US);
Cynthia L. Rand, Sanford, MI (US);
David C. Molzahn, Midland, MI (US);
Inventors:
William Kruper, Jr., Sanford, MI (US);
Cynthia L. Rand, Sanford, MI (US);
David C. Molzahn, Midland, MI (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/00 (2006.01); C07C 69/757 (2006.01); C07C 51/377 (2006.01); C07C 63/26 (2006.01); C07C 67/297 (2006.01); C07C 67/31 (2006.01); C07C 67/327 (2006.01); C07C 69/675 (2006.01); C07C 69/82 (2006.01); C07C 67/317 (2006.01);
U.S. Cl.
CPC ...
C07C 69/757 (2013.01); C07C 51/377 (2013.01); C07C 63/26 (2013.01); C07C 67/297 (2013.01); C07C 67/31 (2013.01); C07C 67/327 (2013.01); C07C 69/675 (2013.01); C07C 69/82 (2013.01); C07C 67/317 (2013.01);
Abstract
The present invention generally relates to a condensed process for producing terephthalic acid and terephthalic esters from a dialkyl cyclohexane-2,5-dione-1,4-dicarboxylate; a chemoselective process for preparing a substantially bicyclic-lactone-free dialkyl cyclohexane-2,5-diol-1,4-dicarboxylate; and compositions of matter prepared thereby.