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:
Jun. 16, 1998
Filed:
Jun. 16, 1997
Applicant:
Inventors:
Takeshi Minami, Yokohama, JP;
Noriyuki Yoneda, Tokyo, JP;
Yoshimi Shiroto, Yokohama, JP;
Haruto Kobayashi, Yokohama, JP;
Assignee:
Chiyoda Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558275 ; 558277 ; 502165 ;
Abstract
A process for the production of a carbonic diester, wherein an alcohol is reacted in a reaction zone with carbon monoxide and oxygen in the presence of (a) metallic copper or a copper compound, (b) a heterocyclic compound containing one or more nitrogen atoms in the cyclic skeleton and (c) a glycol ether represented by the following formula (I):