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
2011-03-08
2011-03-08
McDonough, James E (Department: 1731)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S100000, C502S102000, C502S104000, C502S115000, C502S150000
Reexamination Certificate
active
07902108
ABSTRACT:
A process for producing a Gp 2/transition metal olefin polymerisation catalyst component, in which a Gp 2 metal complex is reacted with a transition metal compound so as to produce an oil-in-oil emulsion, the disperse phase containing the preponderance of the Mg being solidified by heating to provide a catalyst component of excellent morphology. Polymerisation of olefins using a catalyst containing such a component is also disclosed. The process may be employed in the production of Ziegler-Natta catalysts.
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Denifl Peter
Leinonen Timo
Borealis Technology Oy
McDonnell Boehnen & Hulbert & Berghoff LLP
McDonough James E
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