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:
Oct. 25, 2011
Filed:
Sep. 03, 2002
Dietrich Maschmeyer, Recklinghausen, DE;
Wilfried Bueschken, Haltern, DE;
Michael Grass, Haltern, DE;
Axel Tuchlenski, Muelheim, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Wilfried Bueschken, Haltern, DE;
Michael Grass, Haltern, DE;
Axel Tuchlenski, Muelheim, DE;
Evonik Oxeno GmbH, Marl, DE;
Abstract
The present invention relates to the preparation of alicyclic polycarboxylic esters by ring-hydrogenation of the corresponding aromatic polycarboxylic esters on a catalyst which comprises at least one metal from the triad iron, cobalt, nickel, and at least one metal of the IInd, IIIrd, IVth, Vth, and/or VIth transition group of the Periodic Table. An alicyclic carboxylic ester mixture with a proportion above 10 mol % of the trans isomers. The use of the alicyclic polycarboxylic ester mixtures. Mixtures made from plastics and from alicyclic polycarboxylic ester mixtures.