Basell Polyolefine Gmbh

Equistar Chemicals, LP

Montell Technology Company Bv

Basell Technology Company B.v.

Basell Poliolefine Italia S.r.l.

Lyondell Chemical Technology, L.p.

Basell Polyolefine Wesseling

Basell Polyolifine Gmbh

Pavel V Ivchenko

Ilya Nifant'ev

Luigi Resconi

Sandor M Nagy

Vladimir V Bagrov

Shahram Mihan

Igor Kashulin

Linda N Winslow

Reynald Chevalier

Lenka Lukesova

Francesca Focante

Ilya E Nifant'ev

Fabrizio Piemontesi

Michael W Lynch

Yoshikuni Okumura

Daniel F White

Simona Guidotti

Michael J Elder

Giovanni Baruzzi

Davide Balboni

Barbara Kimmich

Eleonora Ciaccia

Karen L Neal-Hawkins

Gilberto Moscardi

Debra L Jackson

Peter A A Klusener

Marco Sacco

Peter Klusener

Frans Korndorffer

Kees De Kloe

Jos Rijsemus

Ilya V Tajdakov

Frans M Kornorffer

Jos J H Rijsemus

Cristiano Grandini

Kees P De Kloe

Marco Basell Poliolefine Italia srl Sacco

The present disclosure relates to metallocene catalysts for use in polymerization processes. Such catalysis may be used to generate long chain polymers with low long chain branching and high molecular weights. Additionally, the size of the polymers produced can be controlled by modifying the ratio of MAO or other activator to metallocene catalyst.

Substituted zirconocenes catalysts and methods of use in polymerization reactions

Method of preparing epoxidation catalysts are disclosed, including methods comprising reacting an inorganic siliceous solid with a metal complex of the formulas: wherein the variables are defined herein.

Complexes useful as active components in supported epoxidation catalysts

The present disclosure provides metallocene catalysts for use in polymerization processes. Such catalysts may be used to generate polymers with low branching and high molecular weights. Also, the present disclosure provides methods of bimodal polymerization resulting in a duality of average molecular weight polymers being simultaneously produced. In the system, the size of the polymers produced can be controlled by modifying the type and amount of catalyst activator.

Bisaryl metallocenes and use thereof to produce polyolefins

The present disclosure relates to metallocene catalyst and the use thereof to make polyolefins. In particular, the present disclosure relates to silyl-functionalized metallocene catalyst and the use of the silyl-functionalized metallocene catalyst to polymerize olefins and yield a polyolefin. Also, the present disclosure relates to a method for producing a polyolefin comprising at least the step of contacting an olefin with a metallocene catalyst to produce a polyolefin. In particular, the present disclosure provides a method for producing a polyolefin comprising the step of contacting an olefin with a silyl-functionalized metallocene catalyst.

Non-bridged metallocene complexes for the polymerization of olefins

Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligand. In one aspect, supported catalysts are prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the tridentate, dianionic Group 4 metal complex. The catalysts are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins.

Catalysts based on 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligands

A method of preparing supported catalysts useful for olefin polymerization is described. The catalysts comprise a Group 4 metal complex that incorporates a tridentate dianionic ligand. An activator mixture is first made from a boron compound having Lewis acidity and an excess of an alumoxane. The activator mixture is then combined with a support and the Group 4 metal complex to give a supported catalyst. The method provides an active, supported catalyst capable of making high-molecular-weight polyolefins.

Method for preparing non-metallocene catalysts

Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-aryl-8-anilinoquinoline ligand. In one aspect, supported catalysts are prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the tridentate, dianionic Group 4 metal complex. The catalysts are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins.

Catalysts based on 2-aryl-8-anilinoquinoline ligands

A bridged metallocene compound of formula (I) wherein:

Metallocene compounds

A bridged metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon-based group; R1 is a C1-C40 hydrocarbon radical; R2 and R3, form together a condensed 3-7 membered ring; R4 is a hydrogen atom or a C1-C40 hydrocarbon radical; W is an aromatic 5 or 6 membered ring. 

A bridged metallocene compound of formula (I) wherein:M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing heteroatoms; L is a divalent bridging group; Ris a linear C-Chydrocarbon radical optionally containing heteroatoms; Tand Tare a oxygen, sulfur atom or a C(R)group; wherein R, are hydrogen atoms or a C-Chydrocarbon radical; Tand Tare C-Chydrocarbon radicals; Ris a hydrogen atom or a C-Chydrocarbon radical; W is an aromatic 5 or 6 membered ring.

A bridged metallocene compound of formula (I) wherein: M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing hetematoms; L is a divalent bridging group; Ris a linear CChydrocarbon radical optionally containing hetexoatonis; T, T, Tand Tare an oxygen or sulfur atom or a C(R)group with the proviso that at least one group between Tand Tis an oxygen or a sulfur atom; wherein R, are hydrogen atoms or a C-Chydrocarbon radical; n is 1, 2 or 3; Ris a hydrogen atom or a C-Chydro carbon radical; W is an aromatic 5 or 6 membered ring. 

Synthesis of cyclopentadiene derivatives

A metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, same or different, is a hydrogen atom, a halogen atom, or a R, OR, OSOCF, OCOR, SR, NRor PRgroup, wherein R is C-Chydrocarbon group; L is a divalent bridging group; R, is a C-Chydrocarbon group; Ris a C-Chydrocarbon group; R, R, R, R, Rand R, equal to or different from each other, are hydrogen atoms or C-Chydrocarbon groups. 

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 process for preparing cyclopentadiene derivatives comprising the steps of: a) coupling a five membered heterocycle ring with a five or six membered heterocycle ring; b) reacting the obtained compound with a carbonilating system: c) reducing the obtained compound.

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Moscow, Russia

Pavel V Ivchenko