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:
Jul. 15, 2014
Filed:
Feb. 17, 2010
Petrus Van Leeuwen, Kockengen, NL;
Mathieu Tschan, Tarragona, ES;
Zoraida Freixa, Tarragona, ES;
Henk Hagen, Terneuzen, NL;
Petrus Van Leeuwen, Kockengen, NL;
Mathieu Tschan, Tarragona, ES;
Zoraida Freixa, Tarragona, ES;
Henk Hagen, Terneuzen, NL;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A phosphine-based catalyst composition suitable for the telomerization of butadiene to produce 1-octene includes palladium and one of a class of novel phosphine ligands characterized by two potentially functionalized phenyl rings and cyclized 5- or 6-member alkoxy groups that, together, bridge the two potentially functionalized phenyl rings. In these groups the alkoxy moiety of each is located ortho to at least one functionalizing moiety, if any, on the phenyl rings. The catalysts including this class of phosphine ligands may exhibit higher catalytic activity and selectivity, and may be used at lower temperatures, than many other phosphine ligand catalysts, reducing costs. Palladium precipitation may also be reduced.