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. 06, 1999
Filed:
Jul. 08, 1997
Applicant:
Inventors:
Katsumasa Harada, Yamaguchi, JP;
Yoichi Imbe, Yamaguchi, JP;
Keigo Nishihira, Yamaguchi, JP;
Shuji Tanaka, Yamaguchi, JP;
Satoru Fujitsu, Yamaguchi, JP;
Ryoji Sugise, Yamaguchi, JP;
Koichi Kashiwagi, Yamaguchi, JP;
Toshihiko Sumida, Yamaguchi, JP;
Takashi Doi, Yamaguchi, JP;
Masayuki Nishio, Yamaguchi, JP;
Assignee:
Ube Industries, Ltd., Yamaguchi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558270 ; 558274 ; 558280 ; 558277 ; 558282 ; 549 71 ; 549484 ;
Abstract
A catalyst composed of an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding or a combination of the organic phosphorus compound and a halogen atom-containing compound is effective for decarbonylation, that is, for releasing carbon monoxide from a compound containing a moiety of --CO--CO--O-- in its molecular structure.