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:
Oct. 15, 2013
Filed:
Jul. 22, 2009
John R. Briggs, Midland, MI (US);
Jasson T. Patton, Midland, MI (US);
Sonet Vermaire-louw, Vlissingen, NL;
Peter M. Margl, Midland, MI (US);
Henk Hagen, Terneuzen, NL;
Daryoosh Beigzadeh, Midland, MI (US);
John R. Briggs, Midland, MI (US);
Jasson T. Patton, Midland, MI (US);
Sonet Vermaire-Louw, Vlissingen, NL;
Peter M. Margl, Midland, MI (US);
Henk Hagen, Terneuzen, NL;
Daryoosh Beigzadeh, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
In an improved process for telomerizing butadiene, contact butadiene and an organic hydroxy compound represented by formula ROH (I), wherein R is a substituted or unsubstituted C-C-hydrocarbyl and the organic hydroxy compound is not glycerol, in a reaction fluid in the presence of a palladium catalyst and a phosphine ligand represented by formula PAr(II), wherein each Ar is independently a substituted or unsubstituted aryl having a hydrogen atom on at least one ortho position, at least two Ar groups are ortho-hydrocarbyloxyl substituted aryls. The phosphine ligand has a total of two (2), three (3), four (4), five (5), or six (6) substituted or unsubstituted C-C-hydrocarbyloxyls, and optionally, any two adjacent substituents on an Ar group can be bonded to form a 5- to 7-membered ring.