Dicationic non-metallocene group 4 metal complexes

Details Dicationic non-metallocene group 4 metal complexes Dicationic non-metallocene group 4 metal complexes

B - Operations, Transporting

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J

B01J 31/18 (2006.01) B01J 31/12 (2006.01) B01J 31/14 (2006.01) B01J 31/22 (2006.01) C07F 7/00 (2006.01) C07F 7/10 (2006.01) C07F 7/28 (2006.01) C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2387258

Possibly dicationic or partially dicationic Group 4 metal compounds having e.g. utility as addition polymerization catalysts, obtainable by contacting a charge-neutral complex having two Lewis basic anionic ligand groups, X, of formula (I), with at least 2 molar equivalents of a charge-neutral, Lewis acidic compound, A, such that >=2 Lewis basic groups of the Group 4 metal coordination complex are abstracted or partially abstracted, wherein Y1 and Y2 are independently anionic ligand groups that are covalently bonded to M by means of a sigma bond through an oxygen, phosphorus or nitrogen atom, and contain up to 50 atoms, not counting hydrogen, optionally joined through bridging group, J, and further optionally also contain a coordinate/covalent bond to M; J is an optional divalent bridging group having up to 20 atoms not counting hydrogen; j is 0 or 1; M is a Group 4 metal; X1 are independently Lewis bases; x1 is 0, 1, 2.

L'invention concerne des composés métalliques du groupe 4, dicationiques ou partiellement dicationiques, que l'on utilise, entre autres, en tant que catalyseurs supplémentaires de polymérisation. L'invention concerne encore un procédé de préparation de ces composés.

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