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:
Feb. 29, 2000
Filed:
Mar. 12, 1998
Applicant:
Inventors:
Masamichi Mizukami, Tsukuba, JP;
Yoshihisa Arai, Tsukuba, JP;
Hidefumi Harada, Tsukuba, JP;
Takuo Ohshida, Tsukuba, JP;
Hiroaki Ohgi, Tsukuba, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558277 ;
Abstract
A process for producing a dialkyl carbonate which comprises reacting at least one member selected from the group consisting of urea and alkyl carbamate with alcohol in the presence of both a catalyst and a high boiling point organic compound having a boiling point of 180.degree. C. or above.