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:
Mar. 20, 2007
Filed:
Nov. 12, 2003
Applicants:
Kazuhiko Sato, Ibaraki, JP;
Yoko Usui, Ibaraki, JP;
Inventors:
Kazuhiko Sato, Ibaraki, JP;
Yoko Usui, Ibaraki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aldehyde-containing oily solution and an aqueous hydrogen peroxide solution are reacted in the presence of a catalyst comprising a polymer compound having a sulfonic acid group in a side chain thereof in a heterogeneous solution system. According to such a reaction process, carboxylic acid can be efficiently produced under mild conditions having very little influence and toxicity on the environment and a human body, with simple operations, without requiring the operation for removing a solvent after the completion of the reaction.