Targor Gmbh

Basell Polyolefine Gmbh

Basell Polypropylen Gmbh

Tagor Gmbh

Cornelia Fritze

Hans Bohnen

Frank Kuber

Hans-Friedrich Herrmann

Walter Spaleck

Michael Aulbach

Gerhard Erker

Frank K&uuml;ber

Frank Kueber

Roland Zenk

Markus G&ouml;res

Johannes Ruwwe

Luigi Resconi

Simona Guidotti

Carsten Bingel

Jörg Schottek

Roland Kratzer

Jörg Ludwig Schulte

Frank K{umlaut Over (u)}ber

Frank Küber

A metallocene compound of formula (I): wherein M is zirconium, titanium and hafnium; X is a hydrogen atom, a halogen atom or a hydrocarbon radical; Ris a linear C-C-alkyl radical; Ris a hydrogen atom or hydrocarbon R, R, R, R, R, and R, are hydrogen atoms or hydrocarbon radicals, A is a sulphur (S) atom or an oxygen (O) atom; Q is a radical of formula (II), (III) or (IV) being bonded to the indenyl at the position indicated by the symbol *; (II), (III), (IV) wherein Tis a sulphur atom, an oxygen (O) atom or a NR; R, Rand Rare hydrogen atoms or hydrocarbon radicals; T, T, T, T, and Tare carbon atoms (C) or nitrogen atoms (N); m, m, m, mand mare 0 or 1; R, R, R, Rand Rare hydrogen atoms or hydrocarbon radicals with the provisos that at least one of R, R, R, Rand Ris different from hydrogen atoms, and that no more than two of T, T, T, Tand Tare nitrogen atoms.

Metallocenes, use in catalyst system for producing olefin polymers

A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formulaMRRR&#x2003;&#x2003;(I)

Supported catalyst system for the polymerization of olefins

A catalyst system comprising at least one metallocene, at least one cocatalyst, at least one support material and, if desired, further organometallic compounds is described. The catalyst system can advantageously be used for the polymerization of olefins and displays a high catalyst activity and gives a good polymer morphology without it being necessary to use aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in high excess, as cocatalyst.

Catalyst system and the use thereof

A catalyst system which can be used in the polymerization of propylene comprises at least one metallocene as a rac/meso isomer mixture, at least one organoboroaluminum compound, at least one passivated support, at least one Lewis base and, if desired, at least one further organometallic compound.

Catalyst system and its use for the polymerization of propylene

The invention relates to a catalyst system composed of metallocenes comprising substituents containing fluorine, a method for producing said system and its use for the polymerization of olefins.

Catalyst system composed of metallocenes comprising substituents containing fluorine

A catalyst system comprises a) a cocatalytically active chemical compound A, b) at least one metallocene B and c) an aluminum compound C.

Catalyst system

The present invention relates to a catalyst system comprising metallocene, cocatalyst, support material and, if desired, further organometallic compounds. The catalyst system can advantageously be used for the polymerization of olefins, where the use of aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in a large excess, as cocatalyst can be dispensed with and a high catalyst activity and good polymer morphology are nevertheless achieved.

Novel chemical compounds have an ionic structure and in combination with an organometallic transition metal compound form a catalyst system which is advantageously used for the polymerization of olefins.

Compounds having an ionic structure used as constituent of an olefin polymerization catalyst

Chemical compound

Catalyst system, method for producing same and its use for the polymerization of olefins

A catalyst system in which the ratio of rac isomer to meso isomer of the metallocene is from 1:10 to 2:1 can be used for the polymerization of olefins.

Catalyst system, method for the production thereof and its use for the polymerization of olefins

The present invention relates to a supported chemical compound of the formula (I)

Covalently supported chemical compound which can be neutral or ionic in the claims

The present invention relates to a process for preparing a metallocene catalyst system, which comprises reacting a metallocene starting compound in a solvent with a compound capable of transferring hydrocarbon radicals and converting the resulting metallocene compound which is &sgr;-substituted by one or more hydrocarbon radicals in solution without isolation into a polymerization-active catalyst system by means of an activator.

Process for preparing a metallocene catalyst system

The present invention relates to a supported catalyst system which comprises at least one metallocene component and at least one cocatalyst component and at least one modified inorganic oxide of silicon, aluminum or mixtures thereof, wherein the modified oxide contains organic silicon radicals containing at least one of the groups nitrogen, fluorine, phosphorus or sulfur.

Supported catalyst system, process for its preparation and its use for the polymerization of olefins

The present invention relates to a supported composition, to processes for its preparation and to its use for polymerizing olefins. The supported catalyst composition comprises at least one transition metal compound of subgroup 3, 4 or 5 of the ##STR1## Periodic Table of the Elements and at least one cocatalyst having the formula II in which R.sup.6 independently at each occurrence are a halogen atom or a C.sub.1 -C.sub.40 carbon-containing group, X is independently at each occurrence a C.sub.1 -C.sub.40 carbon containing group, M.sup.3 independently at each occurrence is identical or different and is an element of group 13 of the Periodic Table of the Elements, a is an integer from 0 to 10, b is an integer from 0 to 10, c is an integer from 0 to 10 and a=b c, n is 0 or 1, m is 0 or 1, l is 0 or 1, g is an integer from 0 to 1, i is an integer from 0 to 1, j is an integer from 1 to 6, and A is a cation of group 1, 2 or 13 of the Periodic Table of the Elements, a carbonium, oxonium or sulfonium cation, or a quaternary ammonium cation.

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Frankfurt-am-Main, Germany

Cornelia Fritze