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
2006-02-21
2006-02-21
Green, Anthony (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S159000, C502S114000, C502S115000, C502S118000, C502S125000
Reexamination Certificate
active
07001862
ABSTRACT:
The present invention relates to a catalyst composition for polymerization of olefins comprising: (a) a solid catalyst pre cursor comprising at least one vanadium compound, at least one magnesium compound and a polymeric material or a solid catalyst precursor comprising at least one vanadium compound, at least one further transition metal compound and/or at least one alcohol, at least one magnesium compound and a polymeric material; and (b) a cocatalyst comprising at least one aluminum compound; and to a method for preparing a catalyst composition according to the present invention, comprising the steps of: (a) combining the components of the solid catalyst precursor; and (b) activating the catalyst precursor with aluminum compound.
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Abu-Raqabah Atieh
Al-Bahily Khalid
Hamed Orass M.
Ledford John
Moman Akhlaq A.
Brown Jennine
Green Anthony
Kramer Levin Naftalis & Frankel LLP
Saudi Basic Industries Corporation
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