Basell Poliolefine Italia S.r.l.

Basell Polyolefine Gmbh

Equistar Chemicals, LP

Reynald Chevalier

Giampiero Morini

Alessandro Mignogna

Ilya Nifant'ev

Shahram Mihan

Sandor M Nagy

Martin Schneider

Pavel V Ivchenko

Linda N Winslow

Patrik Müller

Christian Sidot

Valerie Garcia

Lenka Lukesova

Igor Kashulin

Christian Tellier

Ludovic Delancray

Simona Guidotti

Dario Liguori

Michael W Lynch

Fabiana Fantinel

Harald Schmitz

Karen L Neal-Hawkins

Robert L Jones

A solid catalyst component which exhibits high activity and stereospecificity in the polymerization of olefins made from or containing Mg, Ti and an electron donor of formula (I) where R and Rare selected from the group consisting of C-Chydrocarbon groups, C-Caryl or alkylaryl groups hydrocarbon groups, optionally containing a heteroatom selected from the group consisting of halogens, P, S, N, and O; Rto Rgroups, equal to or different from each other, are hydrogen, halogen or C-Chydrocarbon groups which can be optionally fused together to form one or more cycles with the proviso that Rand Rcannot join together to form a phenyl ring.

Catalyst components for the polymerization of olefins

A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti, halogen and an electron donor of formula (I) or (II)  When activated with an aluminum alkyl and optionally an external electron donor, solid catalyst component can give high activity and stereospecificity in the polymerization of olefins.

Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I) In which X and Y are selected from, R, and &#x2014;ORand &#x2014;NR, B is oxygen or sulphur S is sulphur, Ris selected from C-Chydrocarbon groups, optionally contain a heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more cycles, R is hydrogen or Rand A is a bivalent bridging group with chain length between the two bridging bonds being 1-10 atoms.

A solid catalyst component for the polymerization of olefins comprising Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from specific diphenol derivatives.

Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I)  In which X and Y are selected from, R, and &#x2014;ORand &#x2014;NR, B is oxygen or sulphur S is sulphur, Ris selected from C-Chydrocarbon groups, optionally contain a heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more cycles, R is hydrogen or Rand A is a bivalent bridging group with chain length between the two bridging bonds being 1-10 atoms.

The present technology relates to a solid catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of the general formula (I): where Ris selected from C-Chydrocarbon groups, the Rgroups are equal to or different from each other, are hydrogen, or the Rgroups can be fused together to form one or more cycles and A is a bivalent bridging group. The catalyst components of the present disclosure exhibit high activity and stereospecificity in the polymerization of olefins.

Specific iron complexes (A), a catalyst system for polymerization of olefins comprising at least one metal complex (A) and/or (A'), a prepolymerized catalyst system, the use of these catalyst systems for the polymerization of olefins, and a process for the preparation of polyolefins by polymerization or copolymerization of olefins in the presence of one of the described catalyst systems.

Iron complexes and their use in polymerization processes

The present invention relates to a process for preparing transition metal compounds, in particular ansa-bisindenyl-metallocenes having nitrogen, phosphor, sulfur or oxygen comprising substituents, the corresponding transition metal compounds themselves and their use in the preparation of catalyst systems and also the use of the catalyst systems in the polymerization and copolymerization of olefins.

Process for preparing transition metal compounds for olefins polymerization

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 bridged cyclopentadienyl complex that incorporates a monoanionic hydroxylamido or hydrazido ligand fragment. Suitable complexes have the structure: wherein M is a Group 4 metal; Z is a divalent linking group; X is N or O; each of Rand Ris independently C-Calkyl or C-Caryl; Rand Rcan be joined together; n is 0 when X is O, and n is 1 when X is N; each Y is independently halide, alkyl, dialkylamido, aryl, or aralkyl. A modeling approach is used to identify particular valuable complexes, each of which incorporates a readily synthesized cyclopentadienyl precursor.

Catalysts for olefin polymerization

The present invention relates to a process for recycling cyclopentadienyl derivatives of the formulae (I) and (I'), a process for preparing metallocenes of the formula (III) from cyclopentadienyl derivatives of the formulae (I) and (I&#x2032;) or from bridged biscyclopentadienyl derivatives of the formula (II), in which the cyclopentadienyl derivatives of the formulae (I), (I&#x2032;) or (II) which are used have been at least partly recovered and purified by means of liquid-solid chromatography, and the use of liquid-solid chromatography for purifying substituted, recovered cyclopentadienyl derivatives of the formulae (I), (I&#x2032;) or (II).

Process for recycling cyclopentadienyl derivatives and preparing metallocenes from recycled, substituted cyclopentadienyl derivatives

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

The present invention relates to a process for the racemoselective preparation of ansa-metallocene complexes of the formula (I) which comprises reacting a ligand starting compound of the formula (II) with a transition metal compound of the formula (III)(LB)M(NRR)X&#x2003;&#x2003;(III)where

Process for the racemoselective preparation of ansa-metallocenes

The present invention relates to a process for the meso-selective preparation of ansa-metallocene complexes of the formula (I), which comprises reacting a ligand starting compound of the formula (II) with a transition metal compound of the formula III, where R, Rare identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R, Rare identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, Ris a bulky organic radical which has at least 3 carbon atoms, is bound to the oxygen atom via a nonaromatic carbon or silicon atom and may be substituted by halogen atoms or further organic radicals having from 1 to 20 carbon atoms and may also contain heteroatoms selected from the group consisting of Si, N, P, O and S, T, T' are identical or different and are each a divalent organic group which has from 1 to 40 carbon atoms and together with the cyclopentadienyl ring forms at least one further saturated or unsaturated, substituted or unsubstituted ring system having a ring size of from 5 to 12 atoms, where T and T&#x2032; may contain the heteroatoms Si, Ge, N, P, As, Sb, O, S, Se or Te within the ring system fused to the cyclopentadienyl ring, A is a bridge consisting of a divalent atom or a divalent group, Mis an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides, the radicals X are identical or different and are each an organic or inorganic radical which is able to be replaced by a cyclopentadienyl anion, x is a natural number from 1 to 4, Mis an alkali metal, an alkaline earth metal or a magnesium monohalide fragment, p is 1 in the case of doubly positively charged metal ions or 2 in the case of singly positively charged metal ions or metal ion fragments, LB is an uncharged Lewis base ligand, and y is a natural number from 0 to 6, and also the subsequent reaction of these complexes to form ansa-metallocenes of the formula (IV), the use of transition metal compounds of the formula (III) for preparing metallocenes and also transition metal compounds of the formula (III), ansa-metallocene complexes of the formula (I) and the use of these as constituents of catalyst systems for the polymerization of olefines. 

Growing community of inventors

Frankfurt-am-Main, Germany

Reynald Chevalier