申请人:BOREALIS AG
公开号:US20150329653A1
公开(公告)日:2015-11-19
A catalyst in solid particulate form free from an external carrier material comprising
(i) 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′
2
C—, —R′
2
C—CR′
2
—, —R′
2
Si—, —R′
2
Si—SiR′
2
—, —R′
2
Ge—, wherein each R′ is independently a hydrogen atom, C
1-20
-alkyl, tri(C
1-20
-alkyl)silyl, C
6-20
-aryl, C
7-20
-arylalkyl or C
7-20
-alkylaryl;
R
2
is a C
1-20
-hydrocarbyl radical;
R
2′
is a C
1-20
-hydrocarbyl radical;
R
6
is a linear or branched aliphatic C
1-20
-hydrocarbyl group, SR
9
or OR
9
;
R
6′
is a linear or branched aliphatic C
1-20
-hydrocarbyl group, SR
9′
or OR
9′
;
with the proviso that neither R
6
or R
6′
represents a group having a quaternary carbon atom directly attached to the indenyl ring;
R
9
is a C
1-20
-hydrocarbyl group;
R
9′
is a C
1-20
-hydrocarbyl group;
Ar is a C
6-12
-aryl or C
5-12
-heteroaryl group optionally carrying one or more substituents R
8
;
Ar′ is a C
6-12
-aryl or C
5-12
-heteroaryl group optionally carrying one or more substituents R
8′
;
each R
8
is a C
1-20
-hydrocarbyl group;
each R
8′
is a C
1-20
-hydrocarbyl group; and
wherein at least two of R
2
and R
2′
; R
6
and R
6′
; or Ar and Ar′ are the same;
and (ii) a cocatalyst comprising a compound of a group 13 metal, e.g. Al or boron.
一种无外部载体材料的固体颗粒形式催化剂,包括(i) 公式(I)的配合物,其中M为锆或铪;每个X为σ配体;L为选择自-R'2C-,-R'2C-CR'2-,-R'2Si-,-R'2Si-SiR'2-,-R'2Ge-的二价桥接基,其中每个R'独立地为氢原子,C1-20烷基,三(C1-20烷基)硅基,C6-20芳基,C7-20芳基烷基或C7-20烷基芳基;R2为C1-20烃基基团;R2'为C1-20烃基基团;R6为线性或支链脂肪族C1-20烃基团,SR9或OR9;R6'为线性或支链脂肪族C1-20烃基团,SR9'或OR9';但是R6或R6'不代表直接连接到茚烯环上的季碳原子基团;R9为C1-20烃基团;R9'为C1-20烃基团;Ar为C6-12芳基或C5-12杂芳基,可选地携带一个或多个取代基R8;Ar'为C6-12芳基或C5-12杂芳基,可选地携带一个或多个取代基R8';每个R8为C1-20烃基团;每个R8'为C1-20烃基团;其中至少有两个R2和R2';R6和R6';或Ar和Ar'是相同的;以及(ii) 一种辅催化剂,包括13族金属化合物,例如铝或硼。