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:
Jan. 09, 1979
Filed:
Feb. 22, 1977
Applicant:
Inventors:
Hans Fernholz, Kelkheim, DE;
Hans-Joachim Schmidt, Konigstein, Taunus, DE;
Friedrich Wunder, Florsheim, Main, DE;
Gunter Roscher, Kelkheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560245 ;
Abstract
Process for the preparation of alkenyl esters of carboxylic acids in the gaseous phase from carboxylic acids, olefins and oxygen or oxygen containing gases in the presence of palladium carboxylate catalysts; the carboxylic acid concentration in the feed gas being lower in the starting period of the process than the intended final concentration, and subsequently being increased either continuously or stepwise until the final concentration is attained.