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. 24, 2014
Filed:
Mar. 29, 2010
Olivier Abillard, Mannheim, DE;
Rolf Pinkos, Bad Duerkheim, DE;
Gerd-dieter Tebben, Mannheim, DE;
Tilman Sirch, Schifferstadt, DE;
Daniel Urbanczyk, Darmstadt, DE;
Heiko Urtel, Bobenheim-Roxheim, DE;
Rolf Tompers, Mannheim, DE;
Olivier Abillard, Mannheim, DE;
Rolf Pinkos, Bad Duerkheim, DE;
Gerd-Dieter Tebben, Mannheim, DE;
Tilman Sirch, Schifferstadt, DE;
Daniel Urbanczyk, Darmstadt, DE;
Heiko Urtel, Bobenheim-Roxheim, DE;
Rolf Tompers, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for hydrogenating oligo- and/or polyesters obtainable by esterifying a DCS with a diol or diol mixture, said hydrogenation being performed in the presence of a catalyst whose catalyst precursor comprises copper oxide, aluminum oxide and at least one oxide of lanthanum, of iron, of tungsten, of molybdenum, of titanium or of zirconium, and to a process for preparing 1,6-hexanediol by catalytically hydrogenating ester mixtures which comprise, as main components, oligo- and polyesters of adipic acid and 6-hydroxycaproic acid, and are obtained by esterifying DCS with diols, especially 1,6-hexanediol or diol mixtures.