Patent ID: 6458905
Filing Date: 2002-10-01
Classification: C07C,C07F,C08F

Abstract:
A polymerization process comprising: contacting under polymerizing conditions in a reaction zone:a. at least one olefin; and b. at least one catalyst having one of the following structures: â€ƒwherein: R1-R22 are independently selected from halogen; nitrile or isonitrile; cyanate or isocyanate; straight or branched chain alkyl, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, alkaryl moieties or combinations thereof, any of which optionally include substituent or linking heteroatoms of halogen, oxygen, nitrogen, silicon, phosphorus or sulfur; M is a metal selected from Group 4b, 5b or 6b transition metals; X is an anion; and n is 2, 3, 4, 5 or 6.