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
2007-10-23
2007-10-23
Brunsman, David M (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...
C502S103000, C502S104000, C502S125000, C526S160000, C526S943000
Reexamination Certificate
active
10521076
ABSTRACT:
The present invention relates to a process for preparing a catalyst for olefin polymerization which is obtainable by bringingA) at least one organic transition metal compound,B) a mixture of at least two different organo metallic compounds andC) at least one cation-forming compoundinto contact with one another, wherein the organic transition metal compound A) is firstly brought into contact with the mixture of the organo metallic compounds B). In addition, the invention relates to the use of the catalyst for olefin polymerization, to catalysts obtainable by this process and to a process for the polymerization of olefins in which these catalysts are used.
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Fraaije Volker
Kratzer Roland
Basell Polyolefine GmbH
Brunsman David M
Connolly Bove & Lodge & Hutz LLP
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