申请人:Borealis AG
公开号:EP2532687A3
公开(公告)日:2013-04-10
A catalyst comprising a complex of formula (I)
wherein
M is zirconium or hafnium;
each X is a sigma ligand;
L is a divalent bridge selected from -R'2C-, -R'2C-CR'2-, -R'2Si-, -R'2Si-SiR'2-, -R'2Ge-, wherein each R' is independently a hydrogen atom, C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl;
each R2 is independently a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms from groups 14-16;
each R5 is independently hydrogen or an aliphatic C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16;
each R6 is independently hydrogen or an aliphatic C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16; or
an R5 and R6 group on adjacent carbon atoms can be taken together to form a 5 membered saturated carbon ring which is optionally substituted by a group R4;
each R7 is independently an aliphatic C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16 with at least 2 non-H atoms;
each Ar group is independently an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R1;
each R1 is a C1-20 hydrocarbyl group or two R1 groups on adjacent carbon atoms taken together can form a fused 5 or 6 membered non aromatic ring with the Ar group, said ring being itself optionally substituted with one or more groups R4;
each R4 is a C1-20 hydrocarbyl group;
and (ii) a cocatalyst comprising a compound of a group 13 metal, e.g. boron.
一种催化剂,包括符号(I)的配合物,其中M为锆或铪;每个X为σ配体;L为从-R'2C-、-R'2C-CR'2-、-R'2Si-、-R'2Si-SiR'2-、-R'2Ge-中选择的二价桥,其中每个R'独立地为氢原子、C1-C20-烃基、三(C1-C20-烷基)硅基、C6-C20-芳基、C7-C20-芳基烷基或C7-C20-烷基芳基;每个R2独立地为一个C1-C20烃基基团,可选地含有来自第14-16族的一个或多个杂原子;每个R5独立地为氢或一个脂肪族C1-20烃基基团,可选地含有来自第14-16族的一个或多个杂原子;每个R6独立地为氢或一个脂肪族C1-20烃基基团,可选地含有来自第14-16族的一个或多个杂原子;或相邻碳原子上的一个R5和R6基团可以结合形成一个5成员饱和碳环,该碳环可选地由一个R4基团取代;每个R7独立地为一个脂肪族C1-20烃基基团,可选地含有来自第14-16族的一个或多个杂原子,至少有2个非氢原子;每个Ar基团独立地为一个最多含有20个碳原子的芳基或杂芳基基团,可选地由一个或多个R1基团取代;每个R1为一个C1-20烃基基团,或相邻碳原子上的两个R1基团可以结合形成一个融合的非芳香5或6成员环,与Ar基团一起,所述环本身可选地由一个或多个R4基团取代;每个R4为一个C1-20烃基基团;和(ii)包括第13族金属化合物的共催化剂,例如硼。