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, 1992
Filed:
Jan. 22, 1988
Applicant:
Inventors:
Robert A Sawicki, Wappingers Falls, NY (US);
Harry Chafetz, Glenham, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
558277 ; 502155 ; 502158 ; 556413 ; 556418 ; 556419 ;
Abstract
A lower alkanol, such as methanol is oxycarbonylated with carbon monoxide and oxygen to yield e.g. dimethyl carbonate at 50.degree. C.-125.degree. C. and 300-1500 psig in the presence of as catalyst, a functionalized inorganic oxide substrate (such as silica gel) typically bearing on the surface thereof a ligand of ethyl formate and 3-aminopropyl triethoxy silane--which has been reacted with a metal salt such as CuCl.sub.2.