Preparation of catalyst systems

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

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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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