C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 5/00 (2006.01) B01J 31/00 (2006.01) B01J 37/00 (2006.01) C07D 231/00 (2006.01) C07D 293/00 (2006.01) C07F 7/08 (2006.01) C08F 4/02 (2006.01) C08F 4/44 (2006.01) C08F 4/60 (2006.01) C08F 10/00 (2006.01) C08F 110/02 (2006.01) B01J 31/14 (2006.01)
Patent
CA 2364502
Neutral, multidentate azacyclic ligands and their complexes with group 3-10 and lanthanide metals are disclosed. The ligands are of the general formula Ra- A-(L)b where R is hydrogen or hydrocarbyl, A is silicon, germanium, tin or lead, each L is pyrazolyl, triazolyl or tetraazolyl, a = 0-2, b = 2-4, a + b = 4. When activated with common activators, the metal complexes polymerize olefins.
L'invention concerne des ligands azacycliques multidentés et neutres et leurs complexes comprenant des métaux du type lanthanides des groupes 3-10. Lesdits ligands sont représentés par la formule Ra-A-(L)b, dans laquelle R représente hydrogène ou hydrocarbyle, A représente silicium, germanium, étain ou plomb, chaque L représente pyrazolyle, triazolyle ou tétraazolyle, a = 0-2, a + b = 4. Lorsqu'ils sont activés au moyen d'activateurs courants, les complexes métalliques polymérisent les oléfines.
Equistar Chemicals Lp
Osler Hoskin & Harcourt Llp
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