Sabic Global Technologies B.v.

Ninad Ghavale

Nicolaas Hendrika Friederichs

Vincenzo Busico

Roberta Cipullo

Bogdan A Guzeev

Antonio Vittoria

Anton Ginzburg

Shaneesh Vadake Kulangara

Alexander Voskoboynikov

Ilya Borisov

Dmitry Uborsky

Vyatcheslav Izmer

Dmitry Kononovich

Oleg Samsonov

Nitin Nandurkar

The invention relates to a metallocene complex according to formula I or II wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, R is a divalent bridging group, R, R, Rand R4 are each independently chosen from the group consisting of hydrogen (H); a halogen atom; a silyl, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl group; and R, R, Rand Rare each independently chosen from the group consisting of hydrogen (H); a halogen atom; a silyl, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl group; or two adjacent radicals Rand R, Rand R, and Rand Rare connected with each other in a hydrocarbon ring system. The invention also relates to a catalyst comprising the metallocene complex, to a process for making polyolefins and to the use of the polyolefins for making articles. 

Catalyst comprising a metallocene complex and co-catalyst

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Geleen, Netherlands

Ninad Ghavale