Dow Global Technolgoies LLC

Northwestern University

Dow Global Technology Inc.

Matthew D Christianson

Brad C Bailey

Andrew M Camelio

Robert D J Froese

Jasson T Patton

David D Devore

Jerzy Klosin

Gordon R Roof

Anna V Davis

Edmund M Carnahan

Endre Szuromi

Andrew J Young

Tobin Jay Marks

Timothy Todd Wenzel

Duane R Romer

Sukrit Mukhopadhyay

Daniel J Arriola

Arkady L Krasovskiy

Matthias Stefan Ober

Lixin Sun

Dean M Welsh

Todd D Senecal

Robert Froese

Timothy De Vries

Curt N Theriault

Tracy L Lohr

Yanshan Gao

Paul H Moran

Tomas D Paine

Jeffrey C Munro

Owendi Ongayi

Heather Spinney

Sanil Sreekumar

Jessica L Klinkenberg

Hien Q Do

Matthew M Meyer

Amaruka Hazari

Jeffrey C Munro, Jr

Robert DJ Froese

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

Catalyst systems that include a chain transfer agent and a metal-ligand complex according to formula (I).

Biaryl hydroxythiophene group IV transition metal polymerization catalysts with chain transfer capability

Processes for polymerizing polyolefins include contacting ethylene and optionally one or more (C-C)α-olefin in the presence of a catalyst system, wherein the catalyst system comprises a metal-ligand complex having a structure according to formula (I):

Monobidentate aminopyridine group IV transition metal olefin copolymerization catalysts with ultra-high molecular weight capability and ultra-low comonomer incorporation

Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst dissolved in a non-halogenated aprotic hydrocarbon solvent, the co-catalyst comprising: a non-coordinating borate dianion having the formula: (III) and two cations, each cation being independently chosen from a cation according to formula (I) or formula (II).

Highly soluble bis-borate as binuclear co-catalysts for olefin polymerization

The present disclosure relates to an olefin polymerization 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 catalyst system comprises: (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, and (C) a chain shuttling agent.

Catalyst system for multi-block copolymer formation

Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst, the co-catalyst comprising: a non-coordinating borate anion having the formula [B(CF)]and a cation according to formula (I).

Highly soluble alkyl substituted carbenium borate as co-catalysts for olefin polymerizations

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.

Embodiments are directed to monophosphaguanidine ligands and the bis ligated metal-complexes formed therefrom, wherein the metal-ligand complexes are polymerization catalysts comprising the following structure (I). 

Bis-ligated phosphaguanidine group IV metal complexes and olefin polymerization catalysts produced therefrom

The present disclosure relates to an olefin polymerization 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, and (C) a chain shuttling agent.

Catalyst system for multi-block coploymer formation

Embodiments are directed to phosphaguanidine metal complexes of formula I and using those complexes in &#x3b1;-olefin polymerization systems. 

Phosphaguanidine group IV metal olefin polymerization catalysts

Embodiments are directed to bis- and poly-phosphaguanidine compounds, and the metal-ligand complexes formed therefrom, wherein the metal complexes can be used as procatalysts in polyolefin polymerization. Formulas (I) (II) and (III). 

Bis-phosphaguanidine and poly-phosphaguanidine ligands with group IV metal catalysts produced therefrom

An olefin polymerization catalyst system comprising: a procatalyst component comprising a metal-ligand complex of Formula (I) wherein each X is independently a monodentate or polydentate ligand that is neutral, monoanionic, or dianionic, wherein n is an integer, and wherein X and n are chosen such that the metal-ligand complex of Formula (I) is overall neutral; wherein each R1 and R5 independently is selected from (C1-C40)hydrocarbyls, substituted (C1-C40)hydrocarbyls; (C1-C40)heterohydrocarbyls and substituted (C1-C40)heterohydrocarbyls; wherein each R2 and R4 independently is selected from (C1-C40)hydrocarbyls and substituted (C1-C40)hydrocarbyls; wherein R3 is selected from the group consisting of a (C3-C40)hydrocarbylene, substituted (C3-C40)hydrocarbylene, [(C+Si)3-(C+Si)40]organosilylene, substituted [(C+Si)3-(C+Si)40]organosilylene, [(C+Ge)3-(C+Ge)40]organogermylene, or substituted [(C+Ge)3-(C+Ge)40]organogermylene; wherein each N independently is nitrogen; and optionally, two or more R1-5 groups each independently can combine together to form mono-aza ring structures, with such ring structures having from 5 to 16 atoms in the ring excluding any hydrogen atoms.

Olefin polymerization catalyst

Olefin polymerization catalyst systems are provided that include a procatalyst component having a metal-ligand complex of Formula (I): [formula] (I) where each X is a neutral, monoanionic, or dianionic, monodentate or polydentate ligand such that the complex of Formula (I) is neutral; each Rand Ris a (C-C)aryl, substituted (C-C)aryl, (C-C)heteroaryl, or substituted (C-C)heteroaryl; each R, R, R, R, R, and Ris a hydrogen; (C-C)hydrocarbyl; substituted (C-C)hydrocarbyl; (C-C)heterohydrocarbyl; substituted (C-C)heterohydrocarbyl; halogen; or nitro (NO) group; and each Rand Ris a (C-C)alkyl; substituted (C-C)alkyl; or [(Si)&#x2014;(C+Si)] substituted organosilyl. Additionally, olefin-based polymers and processes for polymerizing one or more olefin-based polymers in the presence of the olefin polymerization catalyst systems are also provided. 

Olefin polymerization catalyst systems and methods of use thereof

An olefin polymerization catalyst system includes a procatalyst component chosen from metal-ligand complexes of Formula (I): In Formula (I), each X is independently a monodentate or polydentate ligand that is neutral, monoanionic, or dianionic; the metal-ligand complex of Formula (I) is overall neutral; each Y-Yand Y-Yindependently is selected from C or N such that six membered diaza (N) or triaza (N) rings are formed; wherein each Rand Rindependently are chosen from (C-C) hydrocarbyl, substituted (C-C) hydrocarbyl, (C-C) heterohydrocarbyl, and substituted (C-C) heterohydrocarbyl or is absent; each R, R, R, R, R, and Ris chosen from hydrogen; (C-C) hydrocarbyl; substituted (C-C) hydrocarbyl; (C-C) heterohydrocarbyl; substituted (C-C) heterohydrocarbyl; halogen, nitro (NO) or is absent; each Rand Rindependently is chosen from (C-C) hydrocarbyl, substituted (C-C) hydrocarbyl, (C-C) heterohydrocarbyl, and substituted (C-C) heterohydrocarbyl. 

A copolymer comprises the polymerized product of a dissolution-rate controlling monomer having the formula (I), an acyclic vinyl ether monomer of the formula (II), and a cyclic vinyl ether monomer of the formula (III): wherein R, R, R, L, X, and Zare defined herein. A photoresist composition comprising the copolymer is described, as is an article coated with the photoresist composition, and a method of forming an electronic device using the photoresist composition.

Growing community of inventors

Midland, MI, United States of America

Matthew D Christianson