Catalyst for polymerization of conjugated diene and method...

Details Catalyst for polymerization of conjugated diene and method... Catalyst for polymerization of conjugated diene and method...

C - Chemistry, Metallurgy

08

F

C08F 4/52 (2006.01) A63B 37/00 (2006.01) B60C 1/00 (2006.01) C08F 36/06 (2006.01) C08L 9/00 (2006.01) C08F 4/606 (2006.01)

Patent

CA 2582264

[PROBLEMS] To provide a polymerization catalyst for conjugated diene polymers with which a conjugated diene polymer having a high cis-1,4 structure content can be produced and which less leaves an aluminum residue after polymerization and has high catalytic activity. [MEANS FOR SOLVING PROBLEMS] The polymerization catalyst for conjugated diene polymers is characterized by comprising (A) a yttrium compound, (B) an ionic compound comprising a non- coordinating anion and cation, and (C) an organometallic compound of an element selected from Groups 2, 12, and 13 of the Periodic Table.

La présente invention a pour objet un catalyseur de polymérisation pour la synthèse de polymères de type diène conjugué. Ledit catalyseur permet la synthèse de polymères de type diène conjugué présentant un taux élevé de doubles liaisons 1,4 conjuguées en configuration cis. Il permet également de diminuer la quantité de résidus d~aluminium récupérés après polymérisation et présente une activité catalytique élevée. Ledit catalyseur est caractérisé en ce qu'il comprend (A) un dérivé d'yttrium, (B) un composé ionique comprenant un anion non-coordinant et un cation, et (C) un dérivé organométallique d~un élément sélectionné au sein des Groupes 2, 12 et 13 du Tableau Périodique.

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