Phillips Petroleum Company

Other

Saudi Basic Industries Corporation

Phillips 66 Company

Hughes Electronics Corporation

Conocophillips Company

Wacker-chemie Gmbh

Helmut G Alt

M Bruce Welch

Syriac J Palackal

Bernd Peifer

Konstantinos Patsidis

Rolf L Geerts

Gil R Hawley

Max P McDaniel

Roland Schmidt

Paul D Smith

Eric T Hsieh

Krisztina Frey

Gabriele Von Massow

Bryan E Hauger

Michael Jung

Peter Schertl

Alexander K&ouml;ppl

Darryl R Fahey

Peter P Chu

David W Dockter

Harold R Deck

Erik Licht

Alexander Koppl

Michael Schmid

Atieh Aburaqabah

Tara G Hill

Roland Zenk

Matthias Dötterl

Ted M Pettijohn

Gary L Glass

Abdulaziz Hamad Al-Humydi

Jay Janzen

Syriac Palackal

Tanja Englmann

Christine Denner

Claudia Schmid

Christian Gorl

Melvin Bruce Welch

Bruce B Randolph

Ronald D Knudsen

David C Rohlfing

Atieh Abu-Raqabah

Frank Baumann

Johann Weis

Marcus Seitz

Klaus Fottinger

Matthias Dotterl

Antoni Jurkiewicz

Ulrich Hammon

Matthias Deppner

Alexander Köppl

Tim Bast

Christian Goerl

Ingrid Boehmer

A process comprising reacting a 2-indenylboranic acid (ester) with a bromosubstituted compound in the presence of the Pd catalyst bis(triphenylphosphin)palladium dichloride and a base to form the corresponding bridged bis(indenyl) ligand. Where the 2-indenylboranic acid (ester) is the pinacolester of 2-indenylboranic acid, the process may further comprise reacting a 2-bromo indene compound with pinacolborane in the presence of a Pd catalyst and a base to form the corresponding 2-indenylpinacolylborane compound. Bridged bis(indenyl)ligands may suitably be used in the preparation of metallocene complexes, such as 2,2'-bis(2-indenyl)biphenyl ZrCland 1,2-bis (2-indenyl)benzene ZrCl. These metallocene complexes may be used for the polymerization, optionally in the presence of a cocatalyst, of one or more &#x3b1;-olefins, preferably for the polymerization of ethylene.

Process for the preparation of metallocene complexes

A method of making a heterogenously supported catalyst useful in dimerization, oligomerization or polymerization is provided in which a catalyst precursor containing a metal and an aromatic group are alkylated onto an oligomeric support having at least one terminal unsaturated group by Friedel Crafts alkylation.

Heterogeneous supports for homogeneous catalysts

A process to prepared bridged bis(indenyl)ligands, comprising the step of reacting a 2-indenylpinacolyl borane compound with a bromosubstituted compound in the presence of a Pd catalyst and a base to form the corresponding bridged bis(indenyl) ligand. The process may further comprise the step of reacting a 2-bromo indene compound with pinacolborane in the presence of a Pd catalyst and a base to form the corresponding 2-indenylpinacolylborane compound. These bridged bis(indenyl)ligands may suitably be used in the preparation of metallocene complexes, such as 2,2'-bis(2-indenyl)biphenyl ZrCland 1,2-bis(2-indenyl)benzene ZrCl. These metallocene complexes may be used for the polymerization, optionally in the presence of a cocatalyst, of one or more &#x3b1;-olefins, preferably for the polymerization of ethylene.

Methods for dimerizing alpha-olefins utilizing immobilized buffered catalysts wherein a buffered ionic liquid is mixed with an organometallic complex of the formula: where M is selected from the group of Ti, Zr, Hg, Ni, and V and R and R' are selected from the group consisting of hydrogen, alkyl, aryl, alkenyl, alkynyl, alkyloxy, substituted aryl, and halogens, are provided.

Organometallic complexes as catalyst precursors for selective olefin dimerization and processes therefor

The present invention relates to a catalyst composition for polymerising olefin monomers to polyolefins comprising a catalyst component and a first additive component. The first additive component is a fossil and may for example be obtained from coal.

Additive component for the improvement of the performance of olefin polymerisation catalysts

Methods for dimerizing alpha-olefins utilizing immobilized buffered catalysts wherein a buffered ionic liquid is mixed with an organometallic complex of the formula: where X is a halogen, n=2 or 3, M=Ti, V, Cr, Mn, Fe, Co and Ni and R1, R2, R3 and R4 are selected from the group consisting of hydrogen, alkyl, aryl, alkenyl, alkynyl, alkyloxy, substituted aryl, and X are provided. A method for dimerizing alpha-olefins utilizing the immobilized buffered catalysts and a co-catalyst is also provided.

Selective olefin dimerization with supported metal complexes activated by alkylaluminum compounds or ionic liquids

Multinuclear catalyst complex comprising two or more active metal centers and at least one phenoxyimine derivative and at least one substituted cyclopentadienyl, indenyl or fluorenyl derivative, each phenoxyimine derivative being bonded to a cyclopentadienyl, indenyl or fluorenyl derivative forming a ligand framework, the cyclopentadienyl, indenyl or fluorenyl derivative being coordinated with one of the metal centers and the phenoxyimine derivative being coordinated with an active metal center other than the metal center the cyclopentadienyl, indenyl or fluorenyl derivative is coordinated with, and wherein the phenoxyimine derivative is derived from a phenoxyimine compound of the formula wherein Ris hydrogen, alkyl, cycloalkyl, aryl or aralkyl;

Catalyst complex and process for producing multimodal molecular weight polyolefins

The present invention relates to a catalyst precursor for the production of odd olefins having the formula: wherein X and Y are halogen and n is 2 or 3; and to a process for its preparation and a method for oligomerization of ethylene.

Catalyst precursor for the production of olefins with an odd number of carbons atoms, process for its preparation and production method for such olefins

A catalyst comprising at least one metal selected from the group consisting of Group 8 metals, Group 9 metals, Group 10 metals and combinations thereof, an organic compound, and a solid acid and a method of making said catalyst is disclosed. The catalyst can be used in a hydrocarbon conversion process.

Hydrocarbon conversion

Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.

Organometallic fluorenyl compounds, preparations, and use

Metallocene having two cyclic dienyl groups connected by a single carbon having an aryl substituent and a terminally unsaturated hydrocarbyl substituent, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.

Metallocenes, polymerization catalyst systems, their preparation, and use

Metallocycle metallocenes are produced by reacting a first metallocene having an aralkyl group or an aryl dialkyl silyl group attached to a cyclodienyl group with about two molar equivalents of an alkali metal alkyl having at least 4 carbon atoms. The use of the metallocycle metallocenes as components of catalyst for the polymerization of olefins is also disclosed.

Metallocycle metallocenes and their use

Metallocenes having a 9-fluorenyl group and another cyclic dienyl group connected by a single carbon having a terminally unsaturated hydrocarbyl substituent wherein the 9-fluorenyl group has a hydrocarbyl substituent in the 4 position, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.

Growing community of inventors

Bayreuth, Germany

Helmut G Alt