Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2005-10-25
2005-10-25
Lu, Caixia (Department: 1713)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S120000, C502S152000, C526S129000, C526S133000, C526S165000
Reexamination Certificate
active
06958306
ABSTRACT:
A catalyst composition and method for preparing a supported catalyst system for olefin polymerization is provided. In one aspect, the catalyst composition includes a reaction product of a dialuminoxane and a halogen substituted aryl borane, wherein the reaction takes place on a support and at conditions sufficient to exchange one or more ligands on the dialuminoxane for one or more ligands on the halogen substituted aryl borane while on the support. In one embodiment, the method for preparing the supported catalyst system includes combining a dialuminoxane with a support to form a treated catalyst support, and combining a halogen substituted aryl borane with the treated catalyst support at conditions sufficient to exchange one or more ligands on the dialuminoxane for one or more ligands on the halogen substituted aryl borane while on the support to form a supported activator. The method further includes reacting one or more polymerization catalysts with the supported activator.
REFERENCES:
patent: 4490514 (1984-12-01), Hoff et al.
patent: 4960878 (1990-10-01), Crapo et al.
patent: 5602269 (1997-02-01), Biagini et al.
patent: 5710224 (1998-01-01), Alt et al.
patent: 5712352 (1998-01-01), Brant et al.
patent: 5721185 (1998-02-01), LaPointe et al.
patent: 5763547 (1998-06-01), Kolthammer et al.
patent: 5854165 (1998-12-01), Yabunouchi et al.
patent: 6147174 (2000-11-01), Holtcamp et al.
patent: 6169152 (2001-01-01), Sakai
patent: 6420297 (2002-07-01), Holtcamp
patent: 6441116 (2002-08-01), Shikuma et al.
patent: 6476166 (2002-11-01), Holtcamp et al.
patent: 6495484 (2002-12-01), Holtcamp
patent: 6518444 (2003-02-01), McConville et al.
patent: 2002/0137859 (2002-09-01), Yokota et al.
patent: 2003/0017940 (2003-01-01), Kashiwamura et al.
patent: 0 694 548 (1996-01-01), None
patent: WO 94/07928 (1994-04-01), None
Eugene You-Zian Chen, Tobin J. Marks, “Cocatalysts for Metal-Catalyzed Olefin Polymerization: Activators, Activation Processes, and Structure-Activity Relationships,” Chem. Rev. 2000, 100, pp. 1391-1434.
Fulkner Kevin M
Lu Caixia
Univation Technologies LLC
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