Exxonmobil Chemical Patents Inc.

Borealis Technology Oy

Mikhail V Nikulin

Alexander Z Voskoboynikov

Jo Ann M Canich

Jo Ann Marie Canich

Andrey F Asachenko

Catalina L Coker

Alexey N Ryabov

Alexander V Lygin

Garth Ronald Giesbrecht

Vyatcheslav V Izmer

Timothy Marlow Boller

Alexey A Tsarev

Dmitry Vadimovich Uborsky

Artyom Y Lebedev

Esa Kokko

Janne Maaranen

Jyrki Kauhanen

Tiina Vanne

Alexander Zelmanovich Voskoboynik

Andrei Fyodorovich Asachenko

Aleksey A Tsarev

Dmitry Konanovich

Alexander V Babkin

Alexey Tzarev

Alexey N Ryahov

Erik Mansner

Laura Saarinen

A complex containing a ligand of formula (I): 

Catalysts

This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly &#x3b1;-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.

Catalyst compounds and use thereof

Halogen substituted metallocene compounds are described and comprise one or more monocyclic or polycyclic ligands that are pi-bonded to the metal atom and include at least one halogen substituent directly bonded to an spcarbon atom at a bondable ring position of the ligand, wherein the or at least one ligand has one or more ring heteroatoms in its cyclic structure. When combined with a suitable activator, these compounds show activity in the polymerization of olefins, such as ethylene and propylene.

Halogen substituted heteroatom-containing metallocene compounds for olefin polymerization

Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands are provided. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly &#x3b1;-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.

This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl ('PAA'), an anisole-amido-aryl ('AAA'), a phenoxy-amido-pyridyl (&#x201c;PAPY&#x201d;), an anisole-amido-phenoxy (&#x201c;AAP&#x201d;) or a anisole-amido-phenoxy (&#x201c;AAP&#x201d;) tridentate ligand. Such compounds can polymerize olefins, such as ethylene.

This invention relates to transition metal compounds, catalyst systems comprising said compounds and polymerization processes using such catalyst systems, where the transition metal compound is represented by the formula:  This invention also relates to process to produce such compounds.

Mono-indenyl transition metal compounds and polymerization therewith

A process for preparing a chelating ligand of the formula (II) from a chelating ligand of the formula (I) via an sp-spor sp-spcoupling reaction with an organometallic compound of the formula (III). wherein B is a bridging group that is bonded to Land Lin formula (I) and to Land Lin formula (II); Lis a substituted monocyclic or polycyclic ligand that comprises at least one chlorine, bromine, iodine, or sulfonate substituent, directly bonded to an spcarbon atom of the ring structure of the ligand; Lis a monoanionic ligand; or Lmay, independently, be defined as L; Lis the same group as L, but said at least one chlorine, bromine, iodine, or sulfonate substituent is replaced with a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl fragment; Lis the same group as L, though, when Lis defined as L, Lmay be the same as Lor L; Ris a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl; Mis an element of group 1, 2, 12, 13 or 14 of the Periodic Table of the Elements; each X, if present, is selected independently from the group consisting of halogen atoms, the hydroxyl group, alkoxy groups, aryloxy groups, mesylate, tosylate and triflate; r is 1, 2 or 3, and t is 0, 1 or 2, where r+t corresponds to the oxidation number of M.

Preparation of substituted bridged indenyl and related ligands

This invention relates to a transition metal compound represented by the formula: wherein

Heteroatom bridged metallocene compounds for olefin polymerization

A metallocene compound comprising a transition metal, a first substituted or unsubstituted indenyl or fluorenyl ligand pi&#x2014;bonded to the transition metal, a second monoanionic ligand bonded to the transition metal, and a divalent bridging group bonded to the indenyl ligand and said second monoanionic ligand, wherein said bridging group is connected to the four, five, six or seven position of the indenyl ligand or to the one, two, three, four, five, six, seven or eight position of the fluorenyl ligand, and wherein at least one of one of the first and second ligands comprises at least one halogen substituent directly bonded to any spcarbon atom at a bondable ring position of the ligand.

Halogen substituted metallocene compounds for olefin polymerization

A metallocene compound is represented by the formula (1): wherein: M is a Group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom, preferably a Group 4 transition metal atom selected from titanium, zirconium or hafnium; E is a substituted or unsubstituted monocyclic or polycyclic arenyl ligand pi-bonded to M; A is a substituted or unsubstituted polycyclic arenyl ligand that is pi-bonded to M and has a different ring structure than the E ligand; at least one of the A and E ligands includes at least one halogen substituent directly bonded to an spcarbon at a bondable ring position; Y is a bridging group containing at least one Group 13, 14, 15, or 16 element and any single position of the ring structure of A and to any single position of the ring structure of E; and y is zero or 1, indicating the absence (y=0) or presence (y=1) of Y; and each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; provided that when E is an unsubstituted cyclopentadienyl ligand, either y is one or A is not 2-bromofluorenyl or 2,7-dibromofluorenyl.

A metallocene compound comprises a transition metal and at least one substituted monocyclic or polycyclic arene ligand bonded to the transition metal, wherein said arene ligand comprises at least one halogen substituent directly bonded to an spcarbon atom at a bondable ring position of an aromatic five-membered ring of said arene ligand.

Growing community of inventors

Moscow, Russia

Mikhail V Nikulin