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. 03, 2009
Filed:
Feb. 07, 2005
Yoshiyuki Himeno, Hiroshima, JP;
Akio Takeda, Hiroshima, JP;
Seiichi Kawato, Hiroshima, JP;
Wataru Ninomiya, Hiroshima, JP;
Yoshiyuki Himeno, Hiroshima, JP;
Akio Takeda, Hiroshima, JP;
Seiichi Kawato, Hiroshima, JP;
Wataru Ninomiya, Hiroshima, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
The object of the present invention is to provide a method for producing an α,β-unsaturated carboxylic acid in higher selectivity. The present invention resides in a method for producing an α,β-unsaturated carboxylic acid from an olefin or an α,β-unsaturated aldehyde in liquid phase by using a noble metal-containing catalyst and by causing a compound (A) having an acid dissociation exponent (pKa) of less than 4 to be present in the liquid phase.