Process for the preparation of an olefin polymer

A very effective catalyst system for olefin polymerization consists of a cocatalyst, preferably an aluminoxane, and a metallocene of the formula (I) and R2 are alkyl or halogen, R3 to R6 are alkyl, -(CR8R9)m-R7-(CR8R9)n- is a chain having one or more members, in which R7 can also be a (substituted)...

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Bibliographic Details
Main Authors ROHRMANN; JUERGEN, ANTBERG; MARTIN, SPALECK; WALTER
Format Patent
LanguageEnglish
Published 12.07.1994
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A very effective catalyst system for olefin polymerization consists of a cocatalyst, preferably an aluminoxane, and a metallocene of the formula (I) and R2 are alkyl or halogen, R3 to R6 are alkyl, -(CR8R9)m-R7-(CR8R9)n- is a chain having one or more members, in which R7 can also be a (substituted) hetero atom, and m+n is zero or 1. The catalyst system leads to polymers of variable molecular weight and stereotacticity, depending on the substituents R3 to R6 chosen, at polymerization temperatures which are relevant in industry.
Bibliography:Application Number: US19930142512