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    • 5. 发明授权
    • Method for the selective hydrogenation of polymer containing conjugated diene
    • 含共轭二烯的聚合物的选择性氢化方法
    • US06410657B1
    • 2002-06-25
    • US09640102
    • 2000-08-15
    • Young Hoon KoHoo Chae KimJae Yun KimJin Man Hwang
    • Young Hoon KoHoo Chae KimJae Yun KimJin Man Hwang
    • C08F804
    • C08C19/02C08F8/04
    • This invention relates to a method for the selective hydrogenation of the unsaturated double bonds in the conjugated diene units of a homopolymer or copolymer in the presence of a novel homogeneous organotitanium-based catalyst. Also, the process of this invention can demonstrate a high yield of hydrogenation and hydrogenation reproducibility using a novel catalyst, so prepared from a mixture consisting of a substituted or unsubstituted monocyclopentadienyl titanium compound expressed by the following formula 1 and lithium hydride derived from a reaction of both alkyl lithium and hydrogen in solution. In particular, this invention also relates to a novel method for the selective hydrogenation of unsaturated double bonds in the conjugated diene units of a conjugated diene polymer or copolymer, so prepared via the reaction between a conjugated diene monomer and vinyl-substituted aromatic monomer wherein, R1, R2, R3, R4 and R5, which may be same or different, are selected from hydrogen atoms and alkyl groups of 1˜5 carbon atoms; X1, X2 and X3, which may be same or different, are selected from halogen atoms.
    • 本发明涉及一种在新型均相有机钛基催化剂存在下,均聚物或共聚物的共轭二烯单元中不饱和双键的选择性氢化的方法。 此外,本发明的方法可以证明使用新型催化剂的高产率的氢化和氢化再现性,所述新型催化剂由由下式1表示的取代或未取代的单环戊二烯基钛化合物和由下式1表示的氢化锂组成的混合物制备: 溶液中的烷基锂和氢。 特别地,本发明还涉及通过共轭二烯单体和乙烯基取代的芳族单体之间的反应制备的共轭二烯聚合物或共聚物的共轭二烯单元中的不饱和双键的选择性氢化的新方法,其中R 1 可以相同或不同的R 2,R 3,R 4和R 5选自氢原子和1〜5个碳原子的烷基; X 1,X 2和X 3可以相同或不同,选自卤素原子。