申请人:Resconi Luigi
公开号:US09079985B2
公开(公告)日:2015-07-14
A solid, particulate catalyst 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′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; each R1 is a C4-C20 hydrocarbyl radical branched at the β-atom to the cyclopentadienyl ring, optionally containing one or more heteroatoms belonging to groups 14-16, or is a C3-C20 hydrocarbyl radical branched at the β-atom to the cyclopentadienyl ring where the β-atom is an Si-atom; each R18 is a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms belonging to groups 14-16; each R4 is a hydrogen atom or a C1-6-hydrocarbyl radical; each W is a 5 or 6 membered aryl or heteroaryl ring wherein each atom of said ring is optionally substituted with at least one R5 group; each R5 is the same or different and is a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms belonging to groups 14-16; and optionally two adjacent R5 groups taken together can form a further mono or multicyclic ring condensed to W optionally substituted by one or two groups R5; and each R7 is a C1-C20 hydrocarbyl radical; and (ii) a cocatalyst, preferably comprising an organometallic compound of a Group 13 metal.
一种固体颗粒催化剂,包括:(i)具有式(I)的配合物,其中M为锆或铪;每个X为σ配体;L为从—R′2C—、—R′2C—CR′2—、—R′2Si—、—R′2Si—SiR′2—、—R′2Ge—中选择的二价桥,其中每个R′独立地为氢原子、C1-C20-烃基、三(C1-C20-烷基)硅基、C6-C20-芳基、C7-C20-芳基烷基或C7-C20-烷基芳基;每个R1为在β-原子处分支到环戊二烯基环的C4-C20烃基基团,可选地含有属于14-16族的一个或多个杂原子,或者是在β-原子处分支到环戊二烯基环的C3-C20烃基基团,其中β-原子为Si原子;每个R18为可选地含有一个或多个属于14-16族的杂原子的C1-C20烃基基团;每个R4为氢原子或C1-6-烃基基团;每个W为5或6成员芳基或杂芳基环,其中所述环的每个原子可选择地用至少一个R5基团取代;每个R5相同或不同,为可选地含有一个或多个属于14-16族的杂原子的C1-C20烃基基团;并且可选地,两个相邻的R5基团一起可以形成一个进一步的单环或多环环,与W形成共轭,可选择地由一个或两个R5基团取代;每个R7为C1-C20烃基基团;以及(ii)一个共催化剂,优选包括第13族金属的有机金属化合物。