Dow Global Technolgoies LLC

Sumitomo Chemical Company, Limited

Rohm and Haas Electronic Materials Korea Ltd.

Dean M Welsh

David R Wilson

Jerzy Klosin

Peter M Margl

Kyoung Moo Koh

Scott D Boelter

David M Pearson

Mari S Rosen

Rafael Huacuja

Kara A Milbrandt

Michael Inbasekaran

Duane R Romer

David J Brennan

Matthias Stefan Ober

Timothy De Vries

Timothy Todd Wenzel

Jasson T Patton

Weishi W Wu

Gordon R Roof

Lixin Sun

Endre Szuromi

Scott G Gaynor

Matthew D Christianson

James J O'Brien

Curt N Theriault

Michelle L Hudack

Paul H Moran

David D Devore

Timothy James Person

Ravi B Shankar

Shaoguang Feng

Bruce Bell

Ray E Drumright

Sukrit Mukhopadhyay

Chun S Wang

Wanglin Yu

Robert D J Froese

James P Godschalx

Nathan Wilmot

Richard J Keaton

Rajat Duggal

Mark T Bernius

Yang Cheng

Liam P Spencer

Robert J Wright

Robert Froese

Kenneth L Foster

Hong-Yeop Na

Mitchell G Dibbs

Q Jason Niu

Mark E Ondari

Paul Henson Townsend

Yu Chen

Robert DJ Froese

Jeff M Shaw

Debra L Nowlin

Oktay Uzun

Vivek Tomer

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

Chromium complex and catalyst therefrom

Process for oligomerization

Phosphacycle compound and process for production thereof

The present disclosure provides a composition. In an embodiment, a composition is provided and comprises a Compound 1 shown below: For Compound 1, Rthrough Rare the same or different. Rthrough Reach is independently selected from the group consisting of hydrogen, unsubstituted hydrocarbyl, substituted hydrocarbyl, cyano, alkoxy, aryloxy, and NR'. R&#x2032; is hydrogen or hydrocarbyl; wherein two or more of adjacent Rto Rmay optionally form one or more ring structures. The Component Z is selected from the group consisting Group Z-1, Group Z-2, Group Z-3, Group Z-4, Group Z-5, Group Z-6 and Group Z-7 shown below: For Compound 1, one or more hydrogen atoms may optionally be substituted with deuterium. 

Compositions with triarylamine derivatives and OLED device containing the same

Battery electrolyte solutions contain certain ester solvents, a lithium salt and vinylene carbonate, vinyl ethylene carbonate or fluoroethylene carbonate. Batteries containing these solvents have excellent specific discharge capacities and reduced weight compared to batteries in which the electrolyte is based on ethylene carbonate.

Battery electrolyte solution containing certain ester-based solvents, and batteries containing such an electrolyte solution

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

Crosslinkable arylamine compounds, oligomers and polymers prepared from such crosslinkable arylamine compounds, films and coatings, and multilayer electronic devices comprising such films are disclosed.

Crosslinkable arylamine compounds and conjugated oligomers or polymers based thereon

Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a bismuth thiophosphoric acid diester salt.

Polyurethanes made using bismuth thiophosphoric acid diester salts as catalysts

Growing community of inventors

Midland, MI, United States of America

Dean M Welsh