Dow Global Technolgoies LLC

Hien Q Do

Mehmet Demirors

Philip P Fontaine

Johnathan E DeLorbe

Andrew J Young

Chunming Zhang

Susan G Brown

Tulaza Vaidya

Jerzy Klosin

David M Pearson

Ruth Figueroa

Andrew M Camelio

Rhett A Baillie

Edmund M Carnahan

Arkady L Krasovskiy

David T Gillespie

Jeffrey C Munro

Brad C Bailey

Liam P Spencer

Matthew D Christianson

Sanjib Biswas

Rahul Sharma

Douglas S Ginger

Zach T Rickaway

Johnathan E Delorbe

Arvind Jaganathan

Jian Wang

Jeffrey C Munro, Jr

Amy E Floeck (nee Duchnowski)

Kelli A Ogawa

Daniel K Lesniewski

Russell W Anderson

Jacquelyn A DeGroot

Embodiments of the present application are directed to procatalysts, and catalyst systems including procatalysts, including a metal-ligand complex having the structure of formula (Ia):

Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers

Embodiments of the present application are directed to procatalysts, and catalyst systems including procatalysts, including a metal-ligand complex having the structure of formula (I):

Catalyst systems and processes for producing polyethylene using the same

Embodiments are directed to a metal-ligand complex catalyst precursor, (L)(L)X(R)(R), and methods for producing the same from a compound of formula QX(R)(R). Land Lare independently —R—Zor —R—Z. Rand Rare independently selected from a hydrogen atom, (C-C)hydrocarbyl and, optionally, Rand Rare connected to form a ring having from 3 to 50 atoms in the ring, excluding hydrogen atoms. X is Si, Ge, Sn, or Pb. Each Q is independently Ar—YR— or Ar—Y—R—. Rand Rare independently selected from —(CR)—, where m is 1 or 2, and where each Ris independently selected from the group consisting of (C-C)hydrocarbyl, (C-C)heterohydrocarbyl, and —H. Yand Yare independently S, Se, or Te. Arand Arare independently (C-C)aryl. Ar—Y—R— and Ar—Y—R— are not identical. Each Zis independently selected from Cl, Br, and I.

Non-cryogenic synthesis of heteroatom-bridge precursors of metal-ligand complex catalysts

The present disclosure relates to a catalyst system for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first olefin polymerization procatalyst, (B) a second olefin polymerization procatalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by procatalyst (A) under equivalent polymerization conditions, (C) an activator, and (D) a chain shuttling agent.

Catalyst system for multi-block copolymer formation

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: 

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. 

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

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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Sugar Land, TX, United States of America

Hien Q Do