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
2007-05-01
2007-05-01
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...
C502S116000, C502S120000, C502S125000, C502S126000, C502S127000, C502S128000, C526S124500, C526S124600, C526S124700, C526S124800
Reexamination Certificate
active
10977949
ABSTRACT:
The present invention provides a novel process for preparing a catalyst useful in gas phase polymerization of olefins wherein the physical properties of the polymer and the productivity of the catalyst can be altered depending on the sequence of addition of the catalyst components. The catalyst consists of compounds of Ti, Mg, Al and optionally an electron donor supported on an amorphous support.
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de Wit Perry Montyn
Goyal Shivendra Kumar
Kelly Mark
Ker Victoria
Kimberley Brian Stephen
Ineos Europe Limited
Johnson Kenneth H.
Lu Caixia
Nova Chemicals Corporation
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