Conjugated diene compound polymerization catalyst, process...

Details Conjugated diene compound polymerization catalyst, process... Conjugated diene compound polymerization catalyst, process...

C - Chemistry, Metallurgy

08

F

C08F 4/68 (2006.01) C08F 10/00 (2006.01) C08F 36/04 (2006.01) C08F 4/639 (2006.01)

Patent

CA 2254459

The present invention provides a process for the production of a conjugated diene polymer having a controlled microstructure at a high polymerization activity in the presence of a metallocene type complex of compound of transition metal of the group V of the Periodic Table. A novel catalyst is provided comprising (A) a metallocene type complex of a transition metal of the group V of the Periodic Table, (B) an ionic compound of a non-coordinating anion and a cation, (C) an organic metal compound of the groups I to III and (D) water, wherein the molar ratio of (C)/(D) is from 0.66 to 5. A novel process for the production of a conjugated dime polymer is also provided, which comprises the polymerization of a conjugated diene compound in the presence of a catalyst comprising (A) a metallocene type complex of a transition metal of the group V of the Periodic Table, (B) an ionic compound of a non-coordinating anion and a cation, (C) an organic metal compound of the groups I to III and (D) water, wherein the molar ratio of (C)/(D) is from 0.66 to 5.

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