초록 ▼

This invention relates to a process for dimerizing an alpha olefin to a vinylidene olefin which comprises contacting said alpha olefin with a catalyst comprising (a) cyclo(pentadienyl)zirconium or hafnium metallocene and (b) an aluminoxane wherein the atom ratio of Al to Zr or Hf in the catalyst ran

This invention relates to a process for dimerizing an alpha olefin to a vinylidene olefin which comprises contacting said alpha olefin with a catalyst comprising (a) cyclo(pentadienyl)zirconium or hafnium metallocene and (b) an aluminoxane wherein the atom ratio of Al to Zr or Hf in the catalyst ranges from about 1 to about 100.

대표청구항 ▼

A process for dimerizing an alpha olefin of the general formula RCH〓CH2 where R is alkyl, cycloalkyl or cycloalkenyl with a carbon number ranging from 1 to about 30 to a vinylidene olefin which process comprises contacting said alpha olefin at a temperature ranging between about -60°C. to about 280°

A process for dimerizing an alpha olefin of the general formula RCH〓CH2 where R is alkyl, cycloalkyl or cycloalkenyl with a carbon number ranging from 1 to about 30 to a vinylidene olefin which process comprises contacting said alpha olefin at a temperature ranging between about -60°C. to about 280°C. with a catalyst comprising (a) a metallocene having the general formula (cyclopentadienyl)2MY2 wherein M is zirconium or hafnium and each Y is individually selected from the group consisting of hydrogen, C1-C5 alkyl, C6-C20 aryl and halogen and (b) an alumoxane, wherein the atom ratio of aluminum to M in the catalyst ranges from about 1 to about 100.