Dow Global Technolgoies LLC

Dow Agrosciences LLC

Robert Froese

Pulikkottil Jacob Thomas

Jerzy Klosin

Matthias Stefan Ober

Matthew D Christianson

Xiuhua Cui

David D Devore

David R Wilson

Gregory T Whiteker

James M Renga

Timothy Todd Wenzel

Yuanming Zhu

Robert J Jorgensen

Duane R Romer

Shaoguang Feng

Kaitlyn C Gray

Sukrit Mukhopadhyay

Andreas Lutz

Richard E Campbell, Jr

Jasson T Patton

Sean W Ewart

Gary Lee Jialanella

Kim Eric Arndt

David Laitar

Gordon R Roof

Peter M Margl

Brad C Bailey

Lixin Sun

Endre Szuromi

Dean M Welsh

Heather Spinney

Yan Fei Liu

Daryoosh Beigzadeh

Andrew M Camelio

Todd D Senecal

Glenn G Eagle

David D Graf

Eric E Cole

Wayde V Konze

Timothy De Vries

Curt N Theriault

Ming Ming

Michael R Golden

Aaron A Rachford

Nermeen W Aboelella

Alex J Nett

Paul H Moran

Alejandro J Garza Gonzalez

Processes of polymerizing olefin monomers using catalyst systems and catalysts systems that include a procatalyst having a structure according to formula (I):

Sterically hindered phosphino-urea supported nickel (II) or palladium (II) catalysts for the copolymerization of ethylene and polar comonomers

Embodiments of this disclosure include polymerization processes that include contacting propylene and/or one or more (C4-C12)α-olefins in a reactor including a catalyst system. The catalyst system comprises a metal-ligand complex according to formula (I).

Biaryl hydroxythiophene group IV transition metal polymerization with chain transfer capability

The present disclosure provides a composition comprising at least one compound selected from the group consisting of Compound 1, Compound 2, and combinations thereof, as shown below, and described herein: wherein, for Compound 1 and Compound 2, independently, Rand Reach independently is selected from the group consisting of hydrogen, a substituted alkyl, an unsubstituted alkyl, a substituted heteroalkyl, an unsubstituted heteroalkyl, a substituted aryl, an unsubstituted aryl, a substituted heteroaryl and an unsubstituted heteroaryl; wherein, for Compound 1 and Compound 2, independently, the Component A is selected from the group consisting of Group a) through Group h): wherein Group a) through Group h) are described herein.

Fluorene derivatives as light emitting elements for electroluminescent devices

Provided is a non-cyclopentadienyl-based chromium-ligand complex, preferably a chromium-ligand complex of formula (J): LCr(R)(D)(J), wherein L is a non-Cp monoanionic ligand; Cr (chromium) is in a formal oxidation state of +3 or +2; when Cr formally is Cr, either m is 1 and Ris hydrocarbylene (a hydrocarbylene chromium-ligand complex of formula (J)) or m is 2 and each Rindependently is hydrocarbyl (a dihydrocarbyl chromium-ligand complex of formula (J)), wherein each hydrocarbyl or hydrocarbylene of Rindependently is unsubstituted or substituted by from 1 to 5 R; each Rindependently is a neutral aprotic heteroalkyl, neutral aprotic heterocycloalkyl, neutral aprotic heteroaryl, or neutral aprotic aryl; when Cr formally is Cr, m is 1 and Ris hydrocarbyl (a hydrocarbyl chromium-ligand complex of formula (J)); k is an integer of 0 or 1; D is absent when k is 0 or D is a neutral ligand when k is 1; wherein the chromium-ligand complex of formula (J) is overall neutral and lacks a cyclopentadienyl-based (Cp-based) moiety. Also provided is a chromium catalyst comprising or prepared from the complex. Also provided is a process of making the catalyst and a process employing the chromium catalyst for polymerizing the olefin monomer, especially a straight chain 1-alkene, to prepare the polyolefin, especially a partially chain-straightened poly(1-alkene) or olefin block copolymer. Further provided is the partially chain-straightened poly(1-alkene) or olefin block copolymer prepared thereby. Also provided is a high throughput workflow.

Non-cyclopentadienyl-based chromium catalysts for olefin polymerization

The invention provides a composition comprising at least one compound selected from the following Formulas A, B1, B2, B3, B4 or C: or a combination thereof (C). For each formula, the R groups are described herein.

Quinoline-benzoxazole derived compounds for electronic films and devices

The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.

Process for selectively polymerizing ethylene and catalyst therefor

Epoxy adhesive compositions contain a heat-activatable catalyst. The heat-activatable catalyst includes a tertiary amine catalyst and a novolac resin that has a weight average molecular weight of at least 3000. One-component epoxy adhesive formulations that contain the heat-activatable catalyst have unexpectedly good storage stability.

Storage-stable heat-activated tertiary amine catalysts for epoxy resins

A process for polymerizing ethylene to produce an ethylene-based polymer including contacting ethylene with a Ziegler-Natta procatalyst, an alkylaluminum cocatalyst and a self limiting agent selected from the group of aliphatic, cycloaliphatic, substituted cycloaliphatic or aromatic esters, anhydrides and amides such that the self limiting agent reduces polymerization rates to no greater than 40% of the polymerization rate in the absence of the self limiting agent at temperatures equal to or greater than 120&#xb0; C. is provided.

Self limiting catalyst composition for ethylene polymerization

4-Amino-3-chloro-5-fluoro-6-(substituted)picolinates are conveniently prepared from 3,4,5,6-tetrachloropicolinonitrile by a series of steps involving fluorine exchange, amination, reaction with hydrazine, halogenation, hydrolysis and esterification, and transition metal assisted coupling.

Process for the preparation of 4-amino-3-chloro-5-fluoro-6-(substituted) picolinates

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

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Midland, MI, United States of America

Robert Froese