Single-site catalysts based on anionic thiopyran dioxide...

Details Single-site catalysts based on anionic thiopyran dioxide... Single-site catalysts based on anionic thiopyran dioxide...

C - Chemistry, Metallurgy

08

F

C08F 10/00 (2006.01) C08F 110/02 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2443492

Single-site catalysts useful for polymerizing olefins are disclosed. The catalysts incorporate a Group 3 to 10 transition, lanthanide, or actinide metal and an anionic thiopyran dioxide ligand. Because a wide variety of thiopyran dioxides are easy to prepare from commercially available starting materials, the invention enables the preparation of a new family of single- site catalysts.

La présente invention concerne des catalyseurs à site unique convenant pour la polymérisation d'oléfines. Ces catalyseurs comprennent d'une part un métal actinide, lanthanide ou de transition du groupe 3 à 10, et d'autre part un ligand anioniques à base de dioxyde de thiopyrane. Etant donné qu'il existe une grande diversité de dioxydes de thiopyrane faciles à obtenir à partir des matériaux de départ disponibles dans le commerce, l'invention se prête particulièrement à l'élaboration d'une nouvelle famille de catalyseurs à site unique.

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