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:
Mar. 08, 2005
Filed:
Mar. 31, 2003
Applicants:
Fredy Speiser, Schiltigheim, FR;
Pierre Braunstein, Strasbourg, FR;
Lucien Saussine, Croissy sur Seine, FR;
Inventors:
Fredy Speiser, Schiltigheim, FR;
Pierre Braunstein, Strasbourg, FR;
Lucien Saussine, Croissy sur Seine, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J031/00 ; B01J037/00 ; C08F004/02 ; C08F004/60 ; C08F004/44 ;
U.S. Cl.
CPC ...
Abstract
A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligapd, with at least one hydrocarbylaluminum compound in a molar proportion with respect to the nickel of not more than 8″ and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.