Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1998-08-07
2000-09-05
Bell, Mark L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502114, 502117, 502155, 526134, 526160, 526943, B01J 3100, B01J 3700, C08F 402, C08F 460, C08F 444
Patent
active
061142700
ABSTRACT:
Single-site catalyst systems containing alkylimido ligands are disclosed. The catalyst systems comprise a co-catalyst and a Group 3-10 transition metal catalyst. The catalyst includes an alkyl- or arylimido ligand and a polymerization-stable, anionic ligand selected from boraaryl, pyrrolyl, and azaborolinyl. When used to polymerize olefins, the catalyst systems are highly productive, give good comonomer incorporation, and give polymers with narrow molecular weight distributions.
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Etherton Bradley P.
Krishnamurti Ramesh
Nagy Sandor
Tyrell John
Bell Mark L.
Equistar Chemicals L.P.
Jones John Wilson
Pasterczyk J.
Schuchardt Jonathan L.
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