Catalyst System for the trimerization of olefins
    1.
    发明授权
    Catalyst System for the trimerization of olefins 失效
    用于烯烃三聚的催化剂体系

    公开(公告)号:US07056995B2

    公开(公告)日:2006-06-06

    申请号:US10645425

    申请日:2003-08-21

    摘要: The invention relates to a catalyst system for the selective trimerization of olefins, which system is based on a titanium complex of formula (Cp-B(R)nAr)TiR13, wherein: Cp is a cyclopentadienyl type ligand, optionally substituted, B is a bridging group, based on a single atom selected from the groups 13 to 16 inclusive of the Periodic System, Ar is a aromatic group, optionally substituted, R is, independently, hydrogen, or a hydrocarbon residue, optionally being substituted and optionally containing heteroatoms, or groups R and B are joined together to form a ring, n is an integer equal to the (valency of B minus 2), and R1 is a mono-anionic group, and further comprises an activator. The present catalyst system obviates the use of toxic chromium compounds.

    摘要翻译: 本发明涉及一种用于烯烃选择性三聚的催化剂体系,该系统基于式(Cp-B(R)Ar Ar Ti Ti 1 O) 其中:Cp是环戊二烯基型配体,任选地被取代,B是基于选自包括周期系的第13至16族中的单个原子的桥连基团,Ar是芳族基团 任选取代的R独立地为氢,或任选被取代且任选地含有杂原子的烃残基,或基团R和B连接在一起形成环,n是等于(B的化合价减去2 ),R 1是单阴离子基团,并且还包含活化剂。 本催化剂体系避免使用有毒的铬化合物。

    Process for selective hydrogenation of poly(monovinyl
aromatic)-poly(conjugated diene) block copolymers
    6.
    发明授权
    Process for selective hydrogenation of poly(monovinyl aromatic)-poly(conjugated diene) block copolymers 失效
    聚(单乙烯基芳族) - 聚(共轭二烯)嵌段共聚物的选择性氢化方法

    公开(公告)号:US5952430A

    公开(公告)日:1999-09-14

    申请号:US935507

    申请日:1997-09-23

    摘要: This invention is a process for the selective hydrogenation of block copolymers having at least one poly(vinyl aromatic) block and at least one poly(conjugated diene) block which comprises contacting the block copolymers with hydrogen in the presence of a hydrogenation catalyst composition which comprises:a) a metal compound cation of the formula �(A)(E)M(R.sub.4)!.sup.+ wherein M represents titanium, zirconium, or hafnium, A and E each represent ligands with structure I or II ##STR1## in which R.sub.1 independently represents the same or different hydrocarbyl groups optionally containing heteroatoms, and R.sub.3 independently represents the same or different hydrocarbonyl groups optionally containing heteroatoms, or a halide, and in which R.sub.1 and R.sub.3 may be shared between A and E to provide a bridge, wherein m is an integer from 0-5, p is an integer from 0-4, and q is an integer from 0-3, wherein R.sub.4 represents hydrogen or hydrocarbyl group optionally containing heteroatoms, with the proviso that if A and E are both ligands with the same structure, at least one of m, p or q is at least 1, andb) a non-coordinating stable anion.

    摘要翻译: 本发明是一种选择性氢化具有至少一个聚(乙烯基芳族)嵌段和至少一种聚(共轭二烯)嵌段的嵌段共聚物的方法,该嵌段共聚物包括在氢化催化剂组合物存在下使嵌段共聚物与氢接触,所述氢化催化剂组合物包含 :a)式[(A)(E)M(R4)] +的金属化合物阳离子,其中M表示钛,锆或铪,A和E各自表示具有结构I或II的配体,其中R 1独立地表示 任选地含有杂原子的相同或不同的烃基,并且R 3独立地表示任选地含有杂原子或卤化物的相同或不同的烃基,并且其中R 1和R 3可以在A和E之间共享以提供桥,其中m是整数 从0-5,p是0-4的整数,q是0-3的整数,其中R4表示氢或任选地含有杂原子的烃基,条件是如果A和E是bot h配体具有相同的结构,m,p或q中的至少一个至少为1,b)非配位稳定的阴离子。