Basell Polyolefine Gmbh

Basell Poliolefine Italia S.r.l.

Montell Technology Company Bv

Basell Technology Company B.v.

Basell Polyolifine Gmbh

Basel Technology Company Bv

Davide Balboni

Luigi Resconi

Simona Guidotti

Giampiero Morini

Vu Anh Dang

Alessandro Mignogna

Antonio Cristofori

Lin-Chen Yu

Tiziano Dall'Occo

Fabrizio Piemontesi

Ilya Nifant'ev

Pavel V Ivchenko

Colin John Schaverien

Joachim T M Pater

Vladimir V Bagrov

Gilberto Moscardi

Francesca Focante

Rosanna Silvestri

Ilya E Nifant'ev

Alessia Boscarato

Jochem T M Pater

Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I) Where Rand R, independently, are selected from hydrogen and C-Chydrocarbon groups, optionally contain an heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more closed cycles and A is a bivalent bridging group.

Magnesium dichloride-ethanol adducts and catalyst component obtained therefrom

Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) In which

Catalyst components for the polymerization of olefins

A 1-butene polymer composition comprising: a) from 10% to 90% by weight of an isotactic 1-butene polymer having the following features: i) isotactic pentad (mmmm) measured byC-NMR, higher than 90%; ii) melting point (TmII) higher than 90&#xb0; C.; and iii) intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 135&#xb0; C. comprised between 0.5 dl/g and 5.0 dl/g. b) from 90% to 10% by weight of a copolymer of 1-butene and at least a C-Calpha-olefin derived units, containing from 0% to 10% by mole of propylene or pentene derived units, and/or containing from 0% to 5% by mole of ethylene derived units having a content of C-Calpha-olefin derived units higher than 4.0% by mol and lower than 20.0% by mol; endowed with the following features: i) isotactic pentad mmmm higher than or equal to 90%; pentads (mmrr+mrrm) lower than 4 and pentad rmmr not detectable by C NMR. ii) intrinsic viscosity (IV) measured in tetrahydronaphthalene at 135&#xb0; C. comprised between 0.8 and 5.0 dL/g; iii) the melting point measured by DSC (TmI) and the C-Calpha-olefin content fulfil the following relationship: TmI&#x3c;130&#xd7;Cwherein C is the molar content of C-Calpha-olefin derived units and TmI is the highest melting peak in the first melting transition; otherwise the melting point TmI is not detectable.

Compositions of 1-butene based polymers

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.

Metallocene compounds

Process for preparing halide metallocene compounds comprising the step of reacting the dialkyl derivative with a halogenating agent of formula RTLwherein: L is chlorine, iodine or bromine; Ris hydrogen or a hydrocarbon group; T is a metal of groups 2-14 of the periodic table of the elements; and x is &#x2267;1 so that x+w is equal to the oxidation state of the metal T.

Process for the production of halide metallocene compounds

An isomerization process comprising the step of contacting a slurry or a solution comprising the meso or meso-like form of one or more bridged metallocene compounds of group 4 of the Periodic Table of the Elements having Cor C-like symmetry with an isomerization catalyst of formula (I) [RW]X(I) wherein: W is a nitrogen or a phosphorus atom; R, equal to or different from each other, are C-Chydrocarbon radicals and Xis an halide atom.

Process for the isomerization of metallocene compounds

A process for preparing dihalide or monohalide metallocene compounds comprising contacting a compound of formula (II) (Cp)(ZR)(A)ML'(II) wherein Cp is a cyclopentadienyl radical; (ZR)is a divalent bridging group between Cp and A; A is a cyclopentadienyl radical or O, S, NR, PRwherein Ris an hydrocarbon radical, M is zirconium, titanium or hafnium. L&#x2032; is an hydrocarbon radical, r ranges from 0 to 2 and y is equal to 4; with an halogenating agent selected from the group consisting of: TLwherein Tis a metal of groups 3&#x2013;13 of the periodic table; L is halogen and wis equal to the oxidation state of the metal T; TLwherein Tis a nonmetal element of groups 13&#x2013;16 of the periodic table (new IUPAC version); and wis equal to the oxidation state of the element T; O=TLwhere Tis a selected from the group consisting of C, P and S; O is an oxygen atom bonded to Tthrough a double bond; and wis equal to the oxidation state of the element Tminus 2; RC(O)L, wherein Ris an hydrocarbon radical; Land HL.

Process for the production of monohalide or dihalide metallocene compounds

A process for obtaining silicon-bridged metallocene compounds comprising the following steps:

Preparation of silicon-bridged metallocene compounds

A process for preparing dihalide or monohalide metallocene compounds comprising contacting a compound of formula (II) (Cp)(ZR)(A)ML'(II) wherein Cp is a cyclopentadienyl radical; (ZR)is a divalent bridging group between Cp and A; A is a cyclopentadienyl radical or O, S, NR, PRwherein Ris an hydrocarbon radical, M is zirconium, titanium or hafnium, L&#x2032; is an hydrocarbon radical, r ranges from 0 to 2 and y is equal to 4; with an halogenating agent selected from the group consisting of: TLwherein Tis a metal of groups 3&#x2013;13 of the periodic table; L is halogen and wis equal to the oxidation state of the metal T; TLwherein Tis a nonmetal element of groups 13&#x2013;16 of the periodic table (new IUPAC version); and wis equal to the oxidation state of the element T; O=TLwhere Tis a selected from the group consisting of C, P and S; O is an oxygen atom bonded to Ttrough a double bond; and wis equal to the oxidation state of the element Tminus 2; RC(O)L, wherein Ris an hydrocarbon radical; Land HL.

A process for the preparation of ligands for metallocene catalysts used in the production of amorphous polymers of alpha-olefins having high molecular weight and narrow molecular weight distributions, in which the isotactic sequences are more abundant than the syndiotactic ones.

Process for the preparation of ligands for metallogene catalysts

Bridged metallocenes, preparation, use in catalytic systems

Amorphous polymers of alpha-olefins, particularly of propylene, having high molecular weights and narrow molecular weight distributions, in which the isotactic sequences are more abundant than the syndiotactic ones, can be obtained in high yields at temperatures of industrial interest by carrying out the polymerization reaction in the presence of metallocene catalysts comprising particular bridged bis-indenyl compounds substituted in the 3-position on the indenyl groups. The obtained amorphous polymers are particularly useful for the preparation of miscible compositions with substantially isotactic alpha-olefins.

Process for the preparation of substantially amorphous alpha-olefin polymers and compositions containing them and process for the preparation of bridged ligand

It is possible to prepare substantially amorphous polymers of propylene endowed with high molecular weights, operating at temperatures of industrial interest, by carrying out the polymerization reaction of propylene in the presence of metallocene catalysts comprising particular bis-indenyl or bis-4,5,6,7-tetrahydroindenyl compounds substituted in the 2-position on the indenyl or tetrahydroindenyl groups.

Process for the preparation of amorphous polymers of propylene

It is disclosed a new class of bridged metallocene compounds of formula (I):

Metallocene compounds and their use in catalysts for the polymerization of olefins

A new process is disclosed, particularly simple, convenient and practical, for the direct synthesis of metallocenes of formula (I): (CP)(ZR,),(A),ML,L&prime;,wherein (ZR,),is a divalent group bridging Cp and A; Cp is a substituted or unsubstituted cyclopentadieryl group; A is &mdash;O&mdash;, &mdash;S&mdash;, &mdash;N(R,)&mdash;, wherein R,is hydrogen, alkyl, cycloalkyl aryl, alkylaryl or arylalkyl, or A has the same meaning of Cp; M is a transition metal belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups; L is a monoanionic sigma ligand, such as alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl, optionally containing Si or Ge; L&prime; is halogen or &mdash;OR,, R,being a hydrocarbon radical; m is 1 or 2; n is 0-4; r is 0 or 1; p is 1-3; q is 0-2. Said process comprises reacting the ligand (Y&mdash;Cp)(ZR,),(A&mdash;Y),, wherein Y is a suitable leaving group, with at least 1 molar equivalent of ML&prime;,in the presence of at least (1&plus;r&plus;p) molar equivalents of L,B or LMgL&prime;, wherein B is an alkaline or alkaline-earth metal, s ranges from 3 to 6, and j is 1 or 2.

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Ferrara, Italy

Davide Balboni