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. 14, 2000
Filed:
Jun. 09, 1999
Applicant:
Inventors:
Stephen John Brown, Calgary, CA;
Xiaoliang Gao, Calgary, CA;
Qinyan Wang, Calgary, CA;
Peter Zoricak, Calgary, CA;
Rupert Edward von Haken Spence, Calgary, CA;
Wei Xu, Calgary, CA;
Assignee:
NOVA Chemicals (International) S.A., Villars-sur-Glane, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526126 ; 526133 ; 526172 ; 526134 ; 526901 ; 5263486 ; 502103 ; 502117 ; 502150 ;
Abstract
Organometallic complexes having a phosphinimine ligand, a (non-phosphinimine) heteroligand and at least one activatable ligand are catalyst components for olefin polymerization. Preferred polymerization systems are prepared by combining the organometallic complexes with an ionic activator and/or an alumoxane. Preferred catalyst components contain Ti, Zr or Hf and are activated with an ionic activator to provide ethylene polymerization catalysts.