Dow Global Technolgoies LLC

Carl N Iverson

Jerzy Klosin

Philip P Fontaine

Mehmet Demirors

Ruth Figueroa

Endre Szuromi

Andrew J Young

Susan G Brown

Zach T Rickaway

Kim Louis Walton

Mridula Babli Kapur

Kevin A Frazier

Harold W Boone

Yi Jin

Edmund M Carnahan

Gary Robert Marchand

Selim Yalvac

Yijian Lin

Daniel D VanderLende

David T Gillespie

Paul C Vosejpka

Cynthia L Rickey

Didem Oner-Deliormanli

Allan Walter Mclennaghan

Tulaza Vaidya

Kate R Brown

Arnaldo T Lorenzo

David R Wilson

Morgan Mark Hughes

Arkady L Krasovskiy

David M Pearson

Jeffrey C Munro

Patricia Ansems

Pulikkottil Jacob Thomas

Lisa S Madenjian

Ian M Munro

Wayde V Konze

Robert David Grigg

Kevin P Peil

Nermeen W Aboelella

Jeffrey C Munro, Jr

Allan W Mclennaghan

Joseph N Iii Coalter

Daniel D Vander Lende

Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):

Bis-phenyl-phenoxy polyolefin procatalysts having two anthracenyl ligands

Embodiments of polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer having at least three ethylene-based components, wherein the multimodal ethylene-based polymer exhibits improved toughness.

Multimodal ethylene-based polymer compositions having improved toughness

Embodiments of polymer compositions and articles comprising such compositions containing at least one LDPE and at least one multimodal ethylene-based polymer having at least three ethylene-based components.

Compositions comprising multimodal ethylene-based polymers and low density polyethylene (LDPE)

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: where X is selected from the group consisting of &#x2014;ORor NR. 

Bis-phenyl-phenoxy polyolefin catalysts having an alkoxy- or amido-ligand on the metal for improved solubility

The invention provides a process to form an olefin-based polymer, said process comprising polymerizing at least one olefin in the presence of at least one catalyst system comprising the reaction product of the following: 

Polymerizations for olefin-based polymers

Embodiments of the present disclosure are directed to multimodal elastomers produced by olefin polymerization with a mixed catalyst system, specifically, a constrained geometry catalyst and a biphenyl phenol catalyst. The multimodal elastomers may be incorporated as impact modifiers in thermoplastic olefins.

Mixed catalyst systems for producing multimodal elastomers

The present disclosure provides a composition. In an embodiment an adhesive composition is provided and includes

Hot melt adhesive composition

The instant invention provides a procatalyst comprising a metal-ligand complex of Formula (I): (Formula I), wherein M, X, n, each Z, L, R, Rand Rthrough Rare each described herein. 

Catalyst systems for olefin polymerization

The invention provides a process to form an olefin-based polymer, said process comprising polymerizing at least one olefin in the presence of at least one catalyst system comprising the reaction product of the following: A) at least one cocatalyst; and B) a procatalyst comprising a metal-ligand complex of Formula (I), as described herein: (Formula I). 

The invention provides an ethylene-based polymer comprising the following properties: a) a ZSVR value from 1.2 to 2.6, b) a MWD from 1.5 to 2.8, and c) a tan delta (0.1 rad/s; 190 C) from 5.0 to 50.

Ethylene-based polymers

The present disclosure provides a composition. In an embodiment an adhesive composition is provided and includes A) a propylene based plastomer or elastomer (PBPE) comprising up to 10 wt % units derived from ethylene and having (i) a Koenig B-value less than 1.0; (ii) a total unsaturation per mole of propylene from 0.01% to 0.03%; (iii) a density from 0.870 g/cc to 0.890 g/cc; (iv) a melt viscosity at 177&#xb0; C. from 800 mPa&#xb7;s to 11,000 mPa&#xb7;s; and (v) a weight average molecular weight from 20,000 to 50,000 g/mol; B) a tackifier; and C) a wax.

The present invention generally relates to a process that copolymerizes two or more polymerizable olefins, and to cataclyst comprising a metal-ligand complex (precatalyst). The present invention also generally relates to ligands useful for preparing the metal-ligand complex.

Process for polymerizing a polymerizable olefin and catalyst therefor

The invention relates to a process for preparing a stable 2-substituted benzofuran-3-yl borate ester corresponding to the formula: said process comprising contacting 3-bromo-2-substituted-benzofuran corresponding to the formula: with an Calkyllithium at a temperature less than &#x2212;60&#xb0; C. to form 3-lithio-2-substititued-benzofuran, contacting the 3-lithio-2-substituted- benzofuran at a temperature less than &#x2212;60&#xb0; C. with an borate ester corresponding to the formula: and recovering the resulting borate ester product,

Process for preparing A 2-substituted benzofuran-3-yl borate ester

Substantially isotaclic propylene interpolyraets comprise (A) at least 60 weight percent (wt %) units derived from propylene, and (B) between greater than zero and 40 wt % units derived from ethylene, the propylene interpolyrner further characterized by at least one of the following properties: (1) a ratio of less than 1 measured at interpolyraer number average molecular weight (Mn), (2) a relative compositional drift of less than 50%, arid (3) propylene chain segments having a chain isotacticity triad index of at least 70 mole percent.

Long chain branched propylene-alpha-olefin copolymers

Hafnium complexes of heterocyclic organic ligands having improved solubility in aliphatic hydrocarbon solvents and their use as components of olefin polymerization catalysts as well as novel syntheses of component parts thereof are disclosed.

Growing community of inventors

Houston, TX, United States of America

Carl N Iverson