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:
Jun. 26, 2012
Filed:
Feb. 04, 2008
Michael Grass, Haltern am See, DE;
Alfred Kaizik, Marl, DE;
Wilfried Bueschken, Haltern am See, DE;
Axel Tuchlenski, Weinheim, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Kurt-alfred Gaudschun, Recklinghausen, DE;
Frank Brocksien, Duelmen, DE;
Michael Grass, Haltern am See, DE;
Alfred Kaizik, Marl, DE;
Wilfried Bueschken, Haltern am See, DE;
Axel Tuchlenski, Weinheim, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Kurt-Alfred Gaudschun, Recklinghausen, DE;
Frank Brocksien, Duelmen, DE;
Evonik Oxeno GmbH, Marl, DE;
Abstract
The invention relates to the hydrogenation of aromatic compounds, in particular the preparation of alicyclic polycarboxylic acids or their esters by core hydrogenation of the corresponding aromatic polycarboxylic acids or their esters, and also to catalysts suitable therefore.