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:
Nov. 27, 2012
Filed:
Oct. 20, 2007
Applicants:
Shigeaki Imazeki, Kawagoe, JP;
Ryohiko Kinoshita, Kawagoe, JP;
Inventors:
Shigeaki Imazeki, Kawagoe, JP;
Ryohiko Kinoshita, Kawagoe, JP;
Assignee:
Wako Pure Chemical Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C11C 3/00 (2006.01); C07C 69/66 (2006.01); C07C 69/34 (2006.01); C07C 67/02 (2006.01); C07C 69/63 (2006.01);
U.S. Cl.
CPC ...
Abstract
Problem To provide an environmentally-friendly method for producing industrially an ester compound. Solution The present invention is a method for producing an ester compound which comprises subjecting a carboxylic acid and an alcohol to dehydration-condensation reaction using an involatile acid catalyst and then removing the residual acid catalyst by bringing a weak basic substance into contact with the residual acid catalyst.