申请人:——
公开号:US20010031843A1
公开(公告)日:2001-10-18
This invention relates to a catalyst system comprising an activator and one or more heteroatom substituted phenoxide group 3 to 10 transition metal or lanthanide metal compounds wherein the metal is bound to the oxygen of the phenoxide group and provided that:
a) if more than one heteroatom substituted phenoxide is present it is not bridged to the other heteroatom substituted phenoxide,
b) if the metal is a group 4 metal then the carbon adjacent to the carbon bound to the oxygen of the phenoxide may not be bound to an aldehyde or an ester,
c) the carbon ortho to the carbon bound to the oxygen of the phenoxide may not be bound to the C
1
carbon in a group represented by the formula:
1
wherein R
6
and R
7
are independently hydrogen, halogen, a hydrocarbon group, a heterocyclic compound residue, an oxygen containing group, a nitrogen containing group, a boron containing group, an sulfur containing group, a phosphorus containing group, a silicon containing group, a germanium containing group, or a tin containing group, and R
1
and R
2
may be bonded to each other to form a ring.
The activator may be an aluminum alkyl, an alumoxane, a modified alumoxane, a non-coordinating anion, a borane, a borate or a mixture thereof.
本发明涉及一种催化剂系统,包括一个活化剂和一个或多个杂原子取代的酚氧基3到10族过渡金属或镧系金属化合物,其中金属与酚氧基的氧原子相结合,且满足以下条件:
a) 如果存在多个杂原子取代的酚氧基,则它不与其他杂原子取代的酚氧基桥接;
b) 如果金属是第4族金属,则与酚氧基氧原子相邻的碳不能与醛或酯结合;
c) 与酚氧基氧原子相邻的邻位碳不能与公式1所表示的基团中的C1碳结合,其中R6和R7独立地表示氢、卤素、烃基、杂环化合物残基、含氧基团、含氮基团、含硼基团、含硫基团、含磷基团、含硅基团、含锗基团或含锡基团,R1和R2可以结合形成环。活化剂可以是铝烷基、氧化铝烷、改性氧化铝烷、非配位阴离子、硼烷、硼酸盐或其混合物。