申请人:Resconi Luigi
公开号:US20080269439A1
公开(公告)日:2008-10-30
A process for preparing 1-butene polymers, comprising polymerizing 1-butene or copolymerizing 1-butene with ethylene, propylene or an alpha-olefin of formula CHT
2
=CHT wherein T is a C
3
-C
10
alkyl group, in the presence of a catalyst system obtainable by contacting: A) a metallocene compound belonging to formula (I): wherein M is zirconium titanium or hafnium; X, equal to or different from each other, is a hydrogen atom, a halogen atom, a hydrocarbon radical optionally containing heteroatoms; R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
12
and R
13
are hydrogen atoms, or C
1
-C
4O
hydrocarbon radicals optionally containing heteroatoms; R
1
, R
2
and R
3
, are linear or branched, C
1
-C
2o
-alkyl radicals, optionally containing heteroatoms: B) a Jumoxane or a compound capable of forming an alkyl metallocene cation; and optionally C) organo aluminum compound.
一种制备1-丁烯聚合物的方法,包括在催化剂系统的存在下聚合1-丁烯或共聚1-丁烯和乙烯、丙烯或化学式为CHT2=CHT的α-烯烃,其中T是C3-C10烷基,所述催化剂系统由以下步骤得到:A)与式(I)属于的金属茂化合物接触,其中M是锆、钛或铪;X,相同或不同,是氢原子、卤素原子、可选含有杂原子的碳氢基;R4、R5、R6、R7、R8、R9、R10、R11、R12和R13是氢原子或C1-C4可选含有杂原子的碳氢基;R1、R2和R3是线性或支链的C1-C2烷基基团,可选含有杂原子。B)Jumoxane或能够形成烷基茂阳离子的化合物;可选C)有机铝化合物。