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:
Dec. 27, 1977
Filed:
Mar. 22, 1976
Applicant:
Inventor:
Lee R Zehner, Media, PA (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560204 ; 2604654 ; 560193 ; 560196 ; 560197 ; 560198 ;
Abstract
A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of an enol ether with carbon monoxide, an alcohol and oxygen-containing gas in the presence of a metal salt catalyst and an amine base. In addition, a catalytic amount of particular metal oxidizing salts is employed along with a catalytic amount of an acid or an amine salt compound. Alternatively various counterions and ligands of the metal salt catalysts may be employed.
Quick Actions:
Zehner, Lee. (1977). Process for the preparation of oxalate esters from carbon monoxide and (U.S. Patent No. 4065490). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4065490
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile