Catalyst composition for hydrogenating polymer of conjugated diene, has first composition of titanium compound or its mixture, second composition of first and/or second specific compound, and third composition of organic metallic compound

摘要

Catalyst composition comprises a first composition having a specific titanium compound or its mixture, a second composition having a first specific compound having a chain structure and/or a second specific compound having a cyclic structure, and a third composition having an organic metallic compound. Catalyst composition comprises a first composition having a titanium compound of formula A 2-Ti(R 2>)(R 1>) or its mixture; a second composition having a first compound of a formula R 3>SiO-(Si(X 1>)(X 2>)-O) n-SiR 3>(II) having a chain structure and/or a second compound of a formula (III) having a cyclic structure; and a third composition having an organic metallic compound. R 1>, R 2>H, halo, 1-8C alkyl, 6-12C alkoxy, 6-12C cycloalkyl, Ph, phenoxy, 7-10C arylalkoxy, 7-10C arylalkyl, carboxy, -CH 2P(Ph) 2, -CH 2Si(1-5C alkyl) 3or -P(Ph) 2; A : cyclopentadienyl, fluorenyl, indenyl or their derivatives; R : 1-12C alkyl; X 1>, X 2>carbonyl, 1-12C alkyl, aryl, 1-12C alkyl aryl or 1-12C cycloalkoxy; n : greater than 1;and m : greater than 2. An independent claim is included for a method of hydrogenating a polymer having a conjugated diene, comprising hydrogenation of dissolving the polymer in an inert organic solvent to be reacted with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate an unsaturated double bond in the polymer. The polymer is conjugated diene homopolymer or copolymer of vinyl aromatic hydrocarbon. [Image].