申请人:ExxonMobil Chemical Patents Inc.
公开号:US09321858B2
公开(公告)日:2016-04-26
Disclosed are new classes of pyridyldiamide catalyst components useful in olefin polymerization, an example of which includes:
wherein M is a hafnium or zirconium; R1 and R11 are selected from phenyl and substituted phenyl, wherein the substitutions are selected from C1 to C5 hydrocarbyls, preferably C2 to C4 hydrocarbyls, and can reside in any of the ortho, meta, para positions on the phenyl ring; R2′ and R2″ are selected independently from hydrogen and C1 to C6 hydrocarbyls, preferably hydrogen; R10 is a hydrocarbyl bridging group; R3, R4, and R5 are independently selected from hydrogen, hydrocarbyls, and substituted hydrocarbyls; and R6, R7, R8, and R9 are independently selected from hydrogen, hydrocarbyls, and substituted hydrocarbyls; wherein R6 and R7 form an aromatic ring or R7 is hydrogen and R6 is selected from methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, and tert-butyl, preferably methyl.
公开了一种新型
吡啶二酰胺催化剂组分,可用于烯烃聚合,其中一个例子包括:其中M是
铪或
锆;R1和R11从苯和取代苯中选择,其中取代基选择自C1到C5的烃基,优选为C2到C4的烃基,并可存在于苯环的任何一个邻位,间位或对位;R2'和R2"独立选择自氢和C1到C6的烃基,优选为氢;R10是一个烃基桥接基团;R3、R4和R5独立选择自氢、烃基和取代烃基;R6、R7、R8和R9独立选择自氢、烃基和取代烃基;其中R6和R7形成芳香环或R7为氢,R6选择自甲基、乙基、丙基、异丙基、丁基、仲丁基和叔丁基,优选为甲基。