The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2015
Filed:
Jul. 06, 2012
Norbert Hafner, Linz, AT;
Pascal Castro, Helsinki, FI;
Pavel Sergeevich Kulyabin, Moscow, RU;
Vyatcheslav Izmer, Moscow, RU;
Alexander Voskoboynikov, Moscow, RU;
Luigi Resconi, Ferrara, IT;
Dmitry Kononovich, Moscow, RU;
Ville Virkkunen, Helsinki, FI;
Dmitry Uborsky, Moscow, RU;
Norbert Hafner, Linz, AT;
Pascal Castro, Helsinki, FI;
Pavel Sergeevich Kulyabin, Moscow, RU;
Vyatcheslav Izmer, Moscow, RU;
Alexander Voskoboynikov, Moscow, RU;
Luigi Resconi, Ferrara, IT;
Dmitry Kononovich, Moscow, RU;
Ville Virkkunen, Helsinki, FI;
Dmitry Uborsky, Moscow, RU;
BOREALIS AG, Vienna, AT;
Abstract
A racemic complex of formula (I), wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R'C—, —R′C—CR′, —R′Si—, —R′Si—SiR′—, —R′Ge—, wherein each R′ is independently a hydrogen atom, C-hydrocarbyl, tri(C-alkyl)silyl, C-aryl, C-arylalkyl or C-alkylaryl; Rand R′ are each independently a Chydrocarbyl radical optionally containing one or more heteroatoms from groups 14-16; R′ is a Chydrocarbyl group optionally containing one or more heteroatoms from groups 14-16 and optionally substituted by one or more halo atoms.