| 摘要 |
The invention relates to the use in an oligomerization reaction performed in the presence of hydrogen and at high temperature of a racemic bridged metallocene catalyst a metallocene compound (A) is represented by the formula R(Cp1)(Cp2) M X1 X2 wherein R is a C1-C20 alkylene bridging group; Cp1 and Cp2 are the same or different substituted or unsubstitued tetrahydroindenyl rings, wherein if substituted, the substitutions may be independent and/or linked to form multicyclic structures; M is a transition metal selected from the group consisting of titanium, zirconium and hafnium; X1 and X2 are independently hydrogen, halogen, hydride radicals, hydrocarbyl radicals, substituted hydrocarbyl radicals, halocarbyl radicals, substituted halocarbyl radicals, silylcarbyl radicals, substituted silylcarbyl radicals, germylcarbyl radicals, substituted germylcarbyl radicals; or both X1 and X2 are joined and bound to the metal atom to form a metallacycle ring containing from 3 to 20 carbon atoms; for the production of polyalpha-olefins. |
