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. 07, 2000
Filed:
Jul. 10, 1998
Applicant:
Inventors:
David R Wilson, Midland, MI (US);
Peter N Nickias, Midland, MI (US);
David R Neithamer, Midland, MI (US);
Richard D Ernst, Salt Lake City, UT (US);
Assignees:
The Dow Chemical Company, Midland, MI (US);
The University of Utah, Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; B01J / ; C08F / ;
U.S. Cl.
CPC ...
502103 ; 502117 ; 502158 ; 526127 ; 526160 ; 526943 ; 556 12 ; 556 13 ; 556 53 ;
Abstract
Catalytic derivatives of novel Group 4 metal complexes wherein the metal is in the +2, +3, or +4 formal oxidation state containing two ligand groups bound by .pi.-electrons, at least one of which is a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group and having a bridged ligand structure, and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.