Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Lynda K. Johnson0
Alex S. Ionkin0
Lin Wang0
Date of Patent
October 3, 2006
Patent Application Number
10273049
Date Filed
October 17, 2002
Patent Primary Examiner
Patent abstract
Olefins are polymerized by novel transition metal complexes of selected iminocarboxylate and iminoamido ligands, sometimes in the presence of cocatalysts such as alkylaluminum compounds or neutral Lewis acids. Olefins which may be (co)polymerized include ethylene, α-olefins, and olefins containing polar groups such as olefinic esters for example acrylate esters. Also described are certain “Zwitterionic” transition metal complexes as polymerization catalysts for making polar copolymers. The resulting polymers are useful as thermoplastics and elastomers.
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