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. 24, 2004
Filed:
Sep. 10, 2002
Applicant:
Inventors:
Helmut Springer, Dinslaken, DE;
Peter Heymanns, Essen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/116 ;
U.S. Cl.
CPC ...
C07C 5/116 ;
Abstract
The invention relates to a method for producing aliphatic carboxylic acids from aldehydes by means of oxidation with oxygen or gases containing oxygen. This novel process is carried out in at least two stages at different temperatures, preferably in the absence of catalysts.