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:
May. 22, 2001
Filed:
Aug. 17, 1999
Applicant:
Inventors:
Ronald G. Cavell, Edmonton, CA;
Qinyan Wang, Calgary, CA;
Ruppa P. Kamalesh Babu, Edmonton, CA;
Aparna Kasani, Edmonton, CA;
Assignee:
The Governors of the University of Alberta, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 5/06 ; C07F 9/02 ; C08F 4/06 ; B01J 3/100 ;
U.S. Cl.
CPC ...
C07F 5/06 ; C07F 9/02 ; C08F 4/06 ; B01J 3/100 ;
Abstract
It is known to polymerize olefins using transition metal complexes and/or compounds. There is an ongoing search for catalysts for olefin polymerization which do not rely on transition metals as the active center. The present invention provides novel aluminum phosphinimine complexes which are useful in the polymerization of olefins.