申请人:ExxonMobil Chemical Patents Inc.
公开号:US20140316089A1
公开(公告)日:2014-10-23
Disclosed are new classes of pyridyldiamide catalyst components useful in olefin polymerization, an example of which includes:
wherein M is a hafnium or zirconium; R
1
and R
11
are selected from phenyl and substituted phenyl, wherein the substitutions are selected from C
1
to C
5
hydrocarbyls, preferably C
2
to C
4
hydrocarbyls, and can reside in any of the ortho, meta, para positions on the phenyl ring; R
2
′ and R
2
″ are selected independently from hydrogen and C
1
to C
6
hydrocarbyls, preferably hydrogen; R
10
is a hydrocarbyl bridging group; R
3
, R
4
, and R
5
are independently selected from hydrogen, hydrocarbyls, and substituted hydrocarbyls; and R
6
, R
7
, R
8
, and R
9
are independently selected from hydrogen, hydrocarbyls, and substituted hydrocarbyls; wherein R
6
and R
7
form an aromatic ring or R
7
is hydrogen and R
6
is selected from methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, and tert-butyl, preferably methyl.
本发明涉及一种用于烯烃聚合的新型吡啶二酰胺催化剂组分,其中一个示例包括:
其中,M为钽或锆;R1和R11选自苯基和取代苯基,其中所述取代基选自C1到C5的烃基,优选为C2到C4的烃基,并可以存在于苯环的任何一个邻位、间位或对位上;R2'和R2"独立地选自氢和C1到C6的烃基,优选为氢;R10为烃基桥连基;R3、R4和R5独立地选自氢、烃基和取代烃基;R6、R7、R8和R9独立地选自氢、烃基和取代烃基;其中,R6和R7形成芳香环或R7为氢且R6选自甲基、乙基、丙基、异丙基、丁基、仲丁基和叔丁基,优选为甲基。