B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 21/02 (2006.01) B01J 31/00 (2006.01) B01J 31/14 (2006.01) B01J 31/16 (2006.01) B01J 31/22 (2006.01) C08F 4/42 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01) C08F 210/00 (2006.01) C08F 4/659 (2006.01) C08F 110/02 (2006.01)
Patent
CA 2388469
A single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an organometallic compound that includes a Group 3 to 10 transition or lanthanide metal, M, and a modified boraaryl ligand. We surprisingly found that the catalyst is more active in olefin polymerization compared to other catalysts containing non-modified boraaryl ligands. Most surprisingly, the supported catalyst gives polyolefins with a multimodal molecular weight distribution having separate components of distinct molecular weight.
La présente invention concerne un catalyseur de polymérisation d'oléfines à site unique. Ce catalyseur comprend un activateur et un composé organométallique qui contient un métal des groupes de transition de 3 à 10 ou un lanthanide, M, et un ligand boraaryle modifié. On a étonnamment trouvé que ce catalyseur était plus actif dans la polymérisation d'oléfines par rapport à d'autres catalyseurs qui contiennent des ligands boraaryle non modifiés. Plus étonnant encore, ce catalyseur sur support donne des polyoléfines à répartition multimodale du poids moléculaire contenant des composants séparés de poids moléculaire distinct.
Merrick-Mack Jean A.
Wang Shaotian
Equistar Chemicals L.p.
Osler Hoskin & Harcourt Llp
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