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. 22, 2016
Filed:
Feb. 26, 2009
Alexander May, Seeheim-Jugenheim, DE;
Bernd Vogel, Wiesbaden, DE;
Hermann Siegert, Seeheim-Jugenheim, DE;
Kurt-alfred Gaudschun, Oer-Erkenschwick, DE;
Thomas Quandt, Marl, DE;
Alexander May, Seeheim-Jugenheim, DE;
Bernd Vogel, Wiesbaden, DE;
Hermann Siegert, Seeheim-Jugenheim, DE;
Kurt-Alfred Gaudschun, Oer-Erkenschwick, DE;
Thomas Quandt, Marl, DE;
Evonik Röhm GmbH, Darmstadt, DE;
Abstract
The present invention relates to a catalyst for reacting carbonitriles with water, wherein the catalyst comprises at least 60% by weight of manganese dioxide with an empirical formula MnOx where x is in the range from 1.7 to 2.0, and at least one plasticizer. The present invention further relates to a process for preparing the catalysts detailed above and to a process for preparing carboxamides by reacting carbonitriles with water in the presence of the present catalyst.