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:
Nov. 27, 2007
Filed:
Dec. 19, 2002
John Thomas Dixon, Vanderbijlpark, ZA;
Peter Wasserscheid, Cologne, DE;
David Shane Mcguinness, Cupar, GB;
Fiona Millicent Hess, Vaalpark, ZA;
Hulisani Maumela, Johannesburg, ZA;
David Hedley Morgan, Johannesburg, ZA;
Annette Bollman, Henley-on-Klip, ZA;
John Thomas Dixon, Vanderbijlpark, ZA;
Peter Wasserscheid, Cologne, DE;
David Shane McGuinness, Cupar, GB;
Fiona Millicent Hess, Vaalpark, ZA;
Hulisani Maumela, Johannesburg, ZA;
David Hedley Morgan, Johannesburg, ZA;
Annette Bollman, Henley-on-Klip, ZA;
Sasol Technology (Pty) Ltd., Johannesburg, ZA;
Abstract
The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is sulfur and at least 2 heteroatoms are not the same. The invention also provides a multidentate mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms of which at least one is a sulfur atom. The ligand may also contain, in addition to sulfur, at least one nitrogen or phosphorous heteroatom.