Dow Global Technolgoies LLC

Tulaza Vaidya

Philip P Fontaine

Jerzy Klosin

David R Wilson

Edmund M Carnahan

Arkady L Krasovskiy

Ruth Figueroa

Chunming Zhang

Andrew J Young

Susan G Brown

Hien Q Do

Johnathan E DeLorbe

Mari S Rosen

Carl N Iverson

Bryan D Stubbert

Robert David Grigg

Zach T Rickaway

Johnathan E Delorbe

Arvind Jaganathan

Amy E Floeck (nee Duchnowski)

Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):

Bis-phenyl-phenoxy polyolefin procatalysts having two anthracenyl ligands

Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: where X is selected from the group consisting of &#x2014;ORor NR. 

Bis-phenyl-phenoxy polyolefin catalysts having an alkoxy- or amido-ligand on the metal for improved solubility

Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: Formula I. 

Germanium-bridged bis-biphenyl-phenoxy catalysts for olefin polymerization

Embodiments are directed to a metal complex formed, wherein the metal complexes are used as pro-catalyst in polyolefin polymerization and comprise the following structure (Formula (I)). 

Silyl-bridged bis-biphenyl-phenoxy catalysts for olefin polymerization

Embodiments are directed to a catalyst system comprising metal-ligand complexes and processes for polyolefin polymerization using the metal-ligand complex having the following structure, Formula (I), where X is selected from the group consisting of &#x2014;(CH2)SiRX3. 

Bis-phenyl-phenoxy polyolefin catalysts having a methylenetrialkylsilicon ligand on the metal for improved solubility

Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: where each X is selected from the group consisting of &#x2014;(CH)SiR. 

Bis-phenyl-phenoxy polyolefin catalysts having two methylenetrialkylsilicon ligands on the metal for improved solubility

The disclosure provides a procatalyst for the polymerization of ethylene and optionally one or more alpha-olefins having the structure shown in formula (I) below: wherein at least two of Y-Yand at least two of Y-Yare fluorine atoms and when only two of Y-Yand only two of Y-Yare fluorine atoms, the non-fluorine Y-Yare selected from the group consisting of H atom, alkyl groups, aryl groups, heteroaryl groups, and alkoxy groups. Also provided is a polymerization process using the procatalyst.

Polymerization process for producing ethylene based polymers

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Collegeville, PA, United States of America

Tulaza Vaidya