[EN] POLYMERISATION PROCESS AND CATALYST<br/>[FR] PROCÉDÉ DE POLYMÉRISATION ET CATALYSEUR
申请人:BOREALIS AG
公开号:WO2014060540A1
公开(公告)日:2014-04-24
A process for the polymerisation of at least one olefin comprising reacting said at least one olefin with a catalyst comprising: (i) a metallocene complex said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.
Multisubstituted <i>C</i><sub>2</sub>-symmetric <i>ansa</i>-metallocenes bearing nitrogen heterocycles: influence of substituents on catalytic properties in propylene polymerization at higher temperatures
作者:Pavel S. Kulyabin、Vyatcheslav V. Izmer、Georgy P. Goryunov、Mikhail I. Sharikov、Dmitry S. Kononovich、Dmitry V. Uborsky、Jo Ann M. Canich、Alexander Z. Voskoboynikov
DOI:10.1039/d1dt00645b
日期:——
2′-dibromobiaryls with 4-aminoindenes, which were synthesized via Buchwald–Hartwig reaction or electrophilicamination of 4-indenyl Grignard reagents with trimethylsilylmethyl azide. By a number of examples, the anion-promoted rac-to-meso isomerization method was shown to work reliably well for preparation of rac-ZrMe2-complexes. Certain zirconocenes among the 21 tested in propylene polymerization at