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:
Apr. 22, 2008
Filed:
Apr. 26, 2003
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;
OXENO Olefinchemie GmbH, Marl, DE;
Abstract
The invention relates to the hydrogenation of aromatic compounds, in particular the preparation of alicyclic polycarboxylic acids or esters of these, via ring hydrogenation of the corresponding aromatic polycarboxylic acids or esters of these, and also to catalysts suitable for this purpose.