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:
Jan. 28, 2014
Filed:
Jun. 16, 2008
Peter M. Fritz, Unterhaching, DE;
Heinz Bölt, Wolfratshausen, DE;
Anina Wöhl, Pullach, DE;
Wolfgang Müller, Munich, DE;
Florian Winkler, Munich, DE;
Anton Wellenhofer, Munich, DE;
Uwe Rosenthal, Lambrechtshagen, DE;
Bernd H. Müller, Rostock, DE;
Marko Hapke, Rostock, DE;
Normen Peulecke, Rostock, DE;
Mohammed Hassan Al-hazmi, Riyadh, SA;
Vugar O. Aliyev, Riyadh, SA;
Fuad Mohammed Mosa, Riyadh, SA;
Peter M. Fritz, Unterhaching, DE;
Heinz Bölt, Wolfratshausen, DE;
Anina Wöhl, Pullach, DE;
Wolfgang Müller, Munich, DE;
Florian Winkler, Munich, DE;
Anton Wellenhofer, Munich, DE;
Uwe Rosenthal, Lambrechtshagen, DE;
Bernd H. Müller, Rostock, DE;
Marko Hapke, Rostock, DE;
Normen Peulecke, Rostock, DE;
Mohammed Hassan Al-Hazmi, Riyadh, SA;
Vugar O. Aliyev, Riyadh, SA;
Fuad Mohammed Mosa, Riyadh, SA;
Saudi Basic Industries Corporation, Riyadh, SA;
Linde AG, , DE;
Abstract
The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) RRP—N(R)—P(R)—N(R)—H or (B) RRP—N(R)—P(R)—N(R)—PRR, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.