Dow Global Technolgoies LLC

The Dow Chemical Company

David D Graf

Roger L Kuhlman

Gordon R Roof

James C Stevens

Phillip Dene Hustad

David D Devore

Yunwa Wilson Cheung

Edmund M Carnahan

Timothy Todd Wenzel

Colin Li Pi Shan

Daniel J Arriola

Benjamin C Poon

Pamela J Stirn

Jerzy Klosin

Peter N Nickias

Jorge Soto

Jasson T Patton

David R Wilson

William Jack Kruper, Jr

Ravi B Shankar

Daniel D VanderLende

Eugene Y Chen

Pulikkottil Jacob Thomas

Robert Froese

Wayde V Konze

Carlos Gilberto Ortiz

Shaoguang S Feng

Nermeen W Aboelella

Timothy A Herzog

A composition 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:

Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation

Metal complexes of polyvalent aryloxyethers appropriately substituted with sterically bulky substituents possess enhanced solubility in aliphatic and cycloaliphatic hydrocarbons and/or when employed as catalyst components for the polymerization of ethylene/&#x3b1;-olefin copolymers, produce products having reduced I/Ivalues.

High temperature polyethylene solution polymerization process

A composition 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 metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

Metal complexes comprising a substituted inden-1-yl group or hydrogenated or partially hydrogenated derivative thereof, said group being substituted at least at the 2-position thereof with a Cligand group containing a secondary or tertiary substitution pattern at the &#x3b2;-carbon thereof, polymerization catalysts; and olefin polymerization processes using the same are disclosed.

Substituted indenyl metal complexes and polymerization process

Group 4 metal constrained geometry complexes comprising tricyclic 4-arylsubstituted indenyl ligands, especially 1,5,6,7-tetrahydro-4-aryl-s-indacen-1-yl ligands, catalytic derivatives thereof, processes for preparing the same and their use as components of olefin polymerization catalysts are disclosed.

Group 4 metal complexes containing 4-aryl-substituted, tricyclic indenyl derivatives

Low molecular weight olefin polymers are prepared by a polymerization process employing titanium complexes comprising a 3-aryl-substituted cyclopentadienyl ring or substituted derivatives thereof as polymerization catalysts.

Low molecular weight ethylene interpolymers and polymerization process

Group 4 metal complexes of the constrained geometry type, catalysts derived therefrom, and polymerization processes using the same, characterized by an alkaryl-substituted silane bridging group are disclosed.

Alkaryl-substituted group 4 metal complexes, catalysts and olefin polymerization process

Highly activated bimetallic complexes and polymerization process

Group 3-6 or Lanthanide metal complexes possessing two metal centers joined by means of a divalent bridging group joining trivalent moieties comprising boron or a member of Group 14 of the Periodic Table of the Elements, and optionally also comprising nitrogen, phosphorus, sulfur or oxygen, in the complexes, catalysts derived therefrom by combining the same with strong Lewis acids, Bronsted acid salts, salts containing a cationic oxidizing agent or subjected to bulk electrolysis in the presence of compatible, inert non-coordinating anions and the use of such catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers are disclosed.

Dinuclear complexes and polymerization catalysts therefrom

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Midland, MI, United States of America

David D Graf