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. 19, 2005
Filed:
Sep. 17, 2001
Wolfgang Ahlers, Worms, DE;
Dag Wiebelhaus, Neustadt, DE;
Rocco Paciello, Bad Dürkheim, DE;
Michael Bartsch, Neustadt, DE;
Robert Baumann, Mannheim, DE;
Dieter Vogt, Eindhoven, NL;
Alison Hewat, Eindhoven, NL;
Wolfgang Ahlers, Worms, DE;
Dag Wiebelhaus, Neustadt, DE;
Rocco Paciello, Bad Dürkheim, DE;
Michael Bartsch, Neustadt, DE;
Robert Baumann, Mannheim, DE;
Dieter Vogt, Eindhoven, NL;
Alison Hewat, Eindhoven, NL;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or antimony-containing compound as ligand is used as hydroformylation catalyst, where the compound used as ligand in each case comprises two groups which comprise a P, As or Sb atom and at least two further hetero atoms and are bound to a xanthene-like molecular framework. New compounds of this type and catalysts which comprise at least one complex of a metal of transition group VIII. with at least one such compound as ligand are also provided.