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:
Aug. 11, 1981
Filed:
Dec. 21, 1979
Applicant:
Inventors:
Wolfgang Bernhagen, Mulheim, DE;
Hanswilhelm Bach, Duisburg, DE;
Eike Brundin, Dinslaken, DE;
Wilhelm Gick, Duisburg, DE;
Helmut Springer, Oberhausen, DE;
Adolf Hack, Oberhausen, DE;
Assignee:
Ruhrchemie AG, Oberhausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568461 ;
Abstract
A process for preparing methacrolein by catalytic reaction of propionaldehyde with formaldehyde is disclosed wherein the catalyst comprises a mixture of secondary amine and organic carboxylic acid with up to 8 carbon atoms.