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:
Apr. 25, 2006
Filed:
Oct. 23, 2003
Applicants:
Abbas Razavi, Mons, BE;
Vladimir Marin, Houston, TX (US);
Margarito Lopez, Pasadena, TX (US);
Inventors:
Assignee:
Fina Technology, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 15/00 (2006.01); C07F 15/02 (2006.01); B01J 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Olefin polymerization catalyst precursors are described herein. The precursors are generally characterized by the formula:wherein M is a transition metal selected from groups 8 to 10 of the Periodic Table; n is an integer of from 1 to 3; Q is a halogen or a Cto Calkyl group; PY is a pyridinyl group, which is coordinated with M through the nitrogen atom of said pyridinyl group; R' is a Cto Chydrocarbyl group; R″ is a Cto Chydrocarbyl group; Ais a monoaromatic group, which is substituted or unsubstituted; and Aincludes multiple aromatic groups, which are substituted or unsubstituted.