Fina Technology, Inc.

Basell Polyolefine Gmbh

Basell Technology Company B.v.

Montell Technology Company Bv

Michael J Elder

John A Ewen

Robert L Jones, Jr

Robert L Jones

B Raghava Reddy

Abbas Razavi

Yuri A Dubitsky

Edwar Shoukri Shamshoum

David J Rauscher

Ilya Nifant'ev

Robert W Strozier

Yoshikuni Okumura

Pavel V Ivchenko

Jennifer Kipke

Vladimir V Bagrov

Markus Schopf

Alexander Koeppl

Naka Seidel

A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using the catalytic system are disclosed; the heterocyclic metallocenes correspond to the formula (I): YR&#x2033;ZMeQPwherein Y is a coordinating group containing a six &#x3c0; electron central radical directly coordinating Me, to which are associated one or more radicals containing at least one non-carbon atom selected from B, N, O, Al, Si, P, S, Ga, Ge, As, Se, In, Sn, Sb and Te; R&#x2033; is a divalent bridge between the Y and Z groups; Z is a coordinating group, optionally being equal to Y; Me is a transition metal; Q is halogen or hydrocarbon substituents; P is a counterion; i is 0 or 1; j is 1-3; jj is 0-2; k is 1-3; and l is 0-2.

Heterocyclic metallocenes and polymerization catalysts

The present invention relates to organometallic transition metal compounds of the formula (I)ZAZMX&#x2003;&#x2003;(I)where

Transition metal compound, ligand system, catalyst system and process for preparing polyolefins

A catalyst system obtained by reacting at least one chiral transition metal compound and at least one cocatalyst, where the chiral transition metal compound is a transition metal compound of formula (Ia) or one of its enantiomers of the formula (Ia*), where

Polymerization catalysts, organic transition metal compounds, process for preparing polyolefins and polyolefins

The present invention relates to a process for preparing heterocyclic ketones of the formulae (I) and (la), by reacting a heterocyclic compound of the formula (II), with an &#x3b1;, &#x3b2;-unsaturated carboxylic acid of the formula (III), or with its anhydride of the formula (IV), where Ris hydrogen or a C-Ccarbon-containing group, Ris hydrogen or a C-Ccarbon-containing group, or Rand Rtogether form a cyclic ring system, Ris a C-Ccarbon-containing group and X is an element of the 16th group of the Periodic Table or is a divalent nitrogen group &#x2014;(N&#x2014;R)&#x2014;, where Ris an electron-withdrawing radical which is selected from the group consisting of perhalogenated C-Ccarbon-containing radicals and C-Corganosulfonyl groups.

Preparation of heterocyclic ketones

The present invention relates to organometallic transition metal compounds of the formula (I), a catalyst composition comprising at least one of the organometallic transition metal compound and an olefin polymerization process in the presence of one of the catalyst composition. 

Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and process for preparing polyolefins

The present invention relates to organometallic transition metal compounds of the formula (I) 

Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefins

A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using said catalytic system are disclosed; the heterocyclic metallocenes correspond to the formula (I): YR&#x2033;ZMeQPwherein Y is a coordinating group containing a six &#x3c0; electron central radical directly coordinating Me, to which are associated one or more radicals containing at least one non-carbon atom selected from B, N, O, Al, Si, P, S, Ga, Ge, As, Se, In, Sn, Sb and Te; R&#x2033; is a divalent bridge between the Y and Z groups; Z is a coordinating group, optionally being equal to Y; Me is a transition metal; Q is halogen or hydrocarbon substituents; P is a counterion; i is 0 or 1; j is 1&#x2013;3; jj is 0&#x2013;2; k is 1&#x2013;3; and l is 0&#x2013;2.

 A metallocene compound of formula (I) wherein M is zirconium, hafnium or titanium; X is hydrogen, halogen, or a hydrocarbyl radical optionally containing heteroatoms; R, R, Rand R, are hydrogen or hydrocarbyl radicals; Ris a hydrocarbil radical; L is a divalent bridging group T is a radical of formula (II), (III), (IV) or (V), wherein Rand Rare a hydrogen atom or a hydrocarbyl radical. with the proviso that at least one group among R, R, Rand Ris a group of formula C(R)Rwherein R, equal to or different from each other, is an hydrocarbyl radical; and Ris hydrogen or an hydrocarbyl radical. These compounds are fit for the preparation of propylene copolymers.

Metallocene compounds and process for the preparation of propylene polymers

A class of metallocene compounds is disclosed having general formula (I) wherein Y is a moiety of formula (II) wherein A, B, and D, same or different from each other, are selected from an element of the groups 14 to 16 of the Periodic Table of the Elements (new IUPAC version), with the exclusion of nitrogen and oxygen; R , R , R , R and R are hydrogen or hydrocarbon groups, Z is selected from a moiety of formula (II) as described above and from a moiety of formula (III) wherein R , R , R and R , are hydrogen or hydrocarbon groups; L is a divalent bridging group; M is an atom of a transition metal selected from those belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC version), X, same or different, is hydrogen, a halogen, a R , OR , OSO CF , OCOR , SR , NR or PR group, wherein the substituents R are hydrogen or alkyl groups; p is an integer of from 1 to 3, being equal to the oxidation state of the metal M minus 2. The above metallocenes are particularly useful in the polymerization of propylene.

Metallocene compounds, process for their preparation and their use in catalytic systems for the polymerization of olefins

New metallocene compounds are described where the ligand contains at least one open-pentadienyl containing radical characterized by a cyclic or acyclic, six &pgr; electron, delocalized, five atomic center structure. These metallocenes can advantageously be used in catalyst systems for the polymerization of olefins to generate a wide variety of different polymers including HDPE, LLDPE, ethylenelpropylene/(diene) elastomers, tactiospecific C3&plus;&agr;-olefin polymers, intimate mixture thereof and the like.

Open-pentadienyl metallocenes, precursors thereof and polymerization catalysts therefrom

Process and catalyst for producing isotactic polyolefins

The invention is a process for using a metallocene catalyst system in polymerization of olefins. The metallocene is contacted with the Lewis acid. The aluminum alkyl is contacted with the olefin. The two mixtures are contacted with each other under polymerization conditions.

Process for olefin polymerization using metallocene catalysts with Lewis

Metallocene catalysts and their preparation and use in the polymerization of olefins. Specifically, the catalysts and processes relate to polymerization of olefins in which an aluminum ionizing agent containing a triphenylcarbenium ion is utilized in preparing the catalyst. The preparation of an olefin polymerization catalyst comprising a metallocene-type catalyst and triphenylcarbenium tetrakis(pentafluorophenyl)aluminate is disclosed.

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Elkton, MD, United States of America

Michael J Elder