| abstract |
PROBLEM TO BE SOLVED: To provide a catalyst system useful for 1-olefin polymerization. SOLUTION: The catalyst system has the formula (B): (B) wherein M is Fe [II], Fe [III], Ru [I I], Ru [III] or Ru [IV]; X Represents an atom or group covalently or ionically bonded to the transition metal M; T represents the oxidation state of the transition metal M and b Is the valency of the atom or group X; R 1 , R 2 , R 3 , R 4 and R 6 are independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl; 5 and R 7 are independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl]. |