C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 4/42 (2006.01) C08F 2/00 (2006.01) C08F 4/00 (2006.01) C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 10/06 (2006.01)
Patent
CA 2424887
A 3+ metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by a anionic multidentate ligand and at least two monoanionic ligands. The multidentate ligand and the transition metal form a metallocycle having at least five primary atoms, counting any .pi.-bound cyclopentadienyl group in the metallocycle as two primary atoms. Olefin polymerization is exemplified.
L'invention concerne un complexe métallique +3 pour polymérisation par coordination d'oléfines. Le complexe métallique précurseur est stabilisé par un ligand anionique multidentate et au moins deux ligands monoanioniques. Le ligand multidentate et le métal de transition forment un métallocycle comportant au moins cinq atomes primaires, chaque groupe cyclopentadiényle à liaison .pi. du métallocycle représentant deux atomes primaires. Une polymérisation d'oléfines est décrite.
Borden Ladner Gervais Llp
Exxonmobil Chemical Patents Inc.
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