Process for hydrogenation of conjugated diene polymers and catalyst compositions suitable for use therein
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0810231A1
公开(公告)日:1997-12-03
The invention provides a catalyst composition suitable for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:
(a) a titanium compound of the formula
wherein A1 represents an optionally substituted heterocyclic five membered ring comprising a phosphorous or nitrogen heteroatom, and A2 has the same meaning as A1 or alternatively represents an optionally substituted cyclopentadienyl group or indenyl group, and wherein L1 and L2 may be the same or different and each may be selected from hydrogen, halogen, lower alkyl, phenyl, aralkyl, having from 7 to 10 carbons, lower alkoxy group, phenyloxy, phenylalkoxy group having from 7 to 10 carbon atoms, carboxyl, carbonyl, a ∼CH2P(Phenyl)2, -CH2 Si(lower alkyl)3 or ∼P(phenyl)2 group; and
(b) an alkalimetal hydride, added as such or prepared in situ in the polymer solution from the alkalimetal terminated living polymer and/or from additionally added alkalimetal alkyl; and
process for hydrogenation of polymers containing ethylenical unsaturation.
本发明提供了一种适用于含乙烯不饱和聚合物氢化的催化剂组合物,该催化剂组合物至少包括
(a) 式中的钛化合物
其中 A1 代表由磷或氮杂原子组成的任选取代的杂环五元环,A2 的含义与 A1 相同,或者代表任选取代的环戊二烯基团或茚基团、其中 L1 和 L2 可以相同或不同,且各自可选自氢、卤素、低级烷基、苯基、具有 7 至 10 个碳原子的芳烷基、低级烷氧基、苯基氧基、具有 7 至 10 个碳原子的苯基烷氧基、羧基、羰基、∼CH2P(苯基)2、-CH2 Si(低级烷基)3 或∼P(苯基)2 基团;和
(b) 烷基亚金属氢化物,作为氢化物加入或在聚合物溶液中就地从以烷 基亚金属为端基的活聚合物和/或从额外加入的烷基亚金属烷基中 制备;以及
含乙烯基不饱和聚合物的氢化工艺。