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:
Jan. 09, 2007
Filed:
May. 14, 2003
Applicants:
Isamu Itoh, Kanagawa, JP;
Taichi Shintou, Kanagawa, JP;
Inventors:
Isamu Itoh, Kanagawa, JP;
Taichi Shintou, Kanagawa, JP;
Assignees:
Fujifilm Finechemicals Co., Ltd., Tokyo, JP;
Meiji Seika Kaisha, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 69/76 (2006.01); C07C 69/95 (2006.01);
U.S. Cl.
CPC ...
Abstract
A 4-phenyl-4-oxo-2-butenoate derivative is stably supplied in a short period of time, at low cost, in high purity and on an industrial scale by a process for producing the 4-phenyl-4-oxo-2-butenoate derivative, which comprises simultaneously or continuously reacting a sulfuric ester, an aromatic hydrocarbon and a maleic anhydride derivative.