Exxonmobil Chemical Patents Inc.

Michelle E Titone

Matthew William Holtcamp

Xuan Ye

Gregory S Day

Jo Ann M Canich

Matthew S Bedoya

David F Sanders

Crisita Carmen H Atienza

David A Cano

John Robert Hagadorn

Alexander Z Voskoboynikov

Dmitry Vadimovich Uborsky

Georgy Pavlovich Goryunov

Mikhail I Sharikov

Laughlin G McCullough

Catherine Anne Faler

Subramaniam Kuppuswamy

Charles J Harlan

Machteld M W Mertens

Alex E Carpenter

Oleg Vladimirovich Samsonov

Hasnain Rangwalla

Gerardo J Majano Sanchez

Vladislav A Popov

This invention relates to transition metal complexes of a dianionic, tridentate ligand that features a central neutral heterocyclic Lewis base and two phenolate donors, where the tridentate ligand coordinates to the metal center to form two eight-membered rings. Preferably the bis(phenolate) complexes are represented by Formula (I): where M, L, X, m, n, E, E', Q, R, R, R, R, R, R, R, R, A, A, are as defined herein, where AQAare part of a heterocyclic Lewis base containing 4 to 40 non-hydrogen atoms that links Ato Avia a 3-atom bridge with Q being the central atom of the 3-atom bridge.

Transition metal bis(phenolate) complexes and their use as catalysts for olefin polymerization

The present invention provides a supported catalyst system comprising: a bridged group 4 metallocene compound, an iron compound, specifically a 2,6-bis(imino)pyridyl iron complex, a support material and an activator. The present invention further provides a process for polymerization of monomers (such as olefin monomers) comprising contacting one or more monomers with the above supported catalyst systems.

Mixed catalysts with 2,6-bis(imino)pyridyl iron complexes and bridged hafnocenes

The present disclosure provides methods for making quinolinyldiamine products from quinolinyl starting materials. In addition, the quinolinyldiamines can be used as ligands or ligand precursors for catalysts, e.g. for use in olefin polymerization.

Methods for making quinolinyldiamines

This invention relates to a catalyst system including fluorided silica, alkylalumoxane activator and a bridged monocyclopentadienyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400&#xb0; C. or more, and is preferably, produced using a wet mix method, particularly an aqueous method.

Catalyst composition comprising fluorided support and processes for use thereof

A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.

Supported Salan catalysts

This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.

Polymerization process using bis phenolate compounds supported on organoaluminum treated layered silicate supports

Supported bis phenolate transition metals complexes, production and use thereof

Growing community of inventors

Houston, TX, United States of America

Michelle E Titone