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:
Dec. 15, 2009
Filed:
Sep. 14, 2002
Applicants:
Wilfried Bueschken, Haltern, DE;
Michael Grass, Haltern, DE;
Alfred Kaizik, Marl, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Franz Nierlich, Marl, DE;
Axel Tuchlenski, Muelheim, DE;
Inventors:
Wilfried Bueschken, Haltern, DE;
Michael Grass, Haltern, DE;
Alfred Kaizik, Marl, DE;
Dietrich Maschmeyer, Recklinghausen, DE;
Franz Nierlich, Marl, DE;
Axel Tuchlenski, Muelheim, DE;
Assignee:
OXENO Olefinchemie GmbH, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 69/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing full esters of alicyclic polycarboxylic acids from partial esters of aromatic polycarboxylic acids by hydrogenation of the partial ester followed by esterification of this compound.