Dow Global Technolgoies LLC

Univation Technologies, LLC

Blue Cube IP LLC

Angela I Padilla-Acevedo

Roger L Kuhlman

Michael J Mullins

John Francis Szul

Ludovic Valette

Andrew J Young

Mark B Wilson

Kandathil Eapen Verghese

Stephen W King

Jerzy Klosin

Timothy R Lynn

Mridula Babli Kapur

Edward D Daugs

Yijian Lin

David M Pearson

David R Neithamer

Christophe R Laroche

Stephanie M Whited

Ruth Figueroa

Nathan Wilmot

Rajat Duggal

Mari S Rosen

Todd A Hogan

Sara B Klamo

Cliff Robert Mure

Brian A Jazdzewski

Peter S Martin

Matthew E Belowich

Ian M Munro

Harshad M Shah

Fabio Aguirre Vargas

Nikhil Eapen Verghese

Bethany M Neilson

Chuan C He

Johnathan E Delorbe

Rhett A Baillie

Ashwin R Bharadwaj

Kwanho Chang

Mahsa McDougal

Eric J Klinker

Joel D Wieliczko

Shadid Askar

Leslie E O'Leary

Theofanis Theofanous

Susan Brown

Tamara L Brennan

Embodiments are directed towards the use of a supported biphenylphenol polymerization catalyst made from a biphenylphenol polymerization precatalyst of Formula I via a gas-phase or slurry-phase polymerization process under gas-phase or slurry-phase polymerization conditions to make a polymer.

Biphenylphenol polymerization catalysts

Embodiments provide bimodal polymerization catalyst systems comprising metallocene olefin polymerization catalysts and biphenylphenol polymerization catalysts made from biphenylphenol polymerization precatalysts of Formula I.

Bimodal catalyst systems

A bimodal ethylene-co-1-hexene copolymer composition consisting of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a melt property performance defined by a combination of melt index (5 kg), melt strength, and, optionally, shear thinning properties, and, when in solid form, is characterized by a slow crack growth property performance defined by a combination of strain hardening modulus and accelerated full-notch creep test performance. A pipe consisting of the bimodal ethylene-co-1-hexene copolymer composition. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer composition. A method of making the pipe. A manufactured article, which is not a pipe, comprising the bimodal ethylene-co-1-hexene copolymer composition.

Bimodal polyethylene copolymer composition and pipe made thereof

In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cmwhen measured according to ASTM D792, and a high load melt index (I) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190&#xb0; C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (M) of less than 50,000 g/mol, a number average molecular weight (M) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.

Polyethylene formulations for large part blow molding applications

A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cyclopentene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make the cyclic organic compound. Also, a method of synthesizing a ligand for a transition metal, and a related substituted ligand-metal complex and catalyst, from the unsubstituted or substituted cyclopentene and unsubstituted or substituted acrylic acid. Also, the cyclic organic compound, ligand, and substituted ligand-metal complex and catalyst synthesized thereby. Also a method of polymerizing an olefin with the catalyst to give a polyolefin, and the polyolefin made thereby.

Synthesis of cyclic organic compounds and metallocenes

A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cycloheptene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make the cyclic organic compound. Also, a method of synthesizing a ligand for a transition metal, and a related substituted ligand-metal complex and catalyst, from the unsubstituted or substituted cycloheptene and unsubstituted or substituted acrylic acid. Also, the cyclic organic compound, ligand, and substituted ligand-metal complex and catalyst synthesized thereby. Also a method of polymerizing an olefin with the catalyst to give a polyolefin, and the polyolefin made thereby.

A method comprising synthesizing a substituted cyclopentenone compound via reaction of a substituted cycloalkyl acrylate ester in the presence of phosphorous pentoxide/methanesulfonic acid reagent to make the substituted cyclopentenone compound.

Synthesis of cyclopentenones

The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises (i) a glycol, (ii) an imidazole compound, and optionally (iii) one or more of an alkali metal carboxylate, an additional glycol different than (i), an alkanolamine, a phosphate acid, a salt of a phosphate acid, a borate acid, a salt of a borate acid, a sweetening agent, a low temperature viscosity improver, a corrosion inhibitor, an antifoaming agent, or mixtures thereof.

Composition and process for the dehydration of gases

Method of preparing a molecular catalyst from a mixture comprising a (C-C)alkane, a spray-dried alkylaluminoxane, and a molecular procatalyst. Molecular catalysts prepared by the method may be screened.

Method of preparing a molecular catalyst

A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cyclohexene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make the cyclic organic compound. Also, a method of synthesizing a ligand for a transition metal, and a related substituted ligand-metal complex and catalyst, from the unsubstituted or substituted cyclohexene and unsubstituted or substituted acrylic acid. Also, the cyclic organic compound, ligand, and substituted ligand-metal complex and catalyst synthesized thereby. Also a method of polymerizing an olefin with the catalyst to give a polyolefin, and the polyolefin made thereby.

A method comprising synthesizing a cyclic organic compound (3) via reaction of an substituted alkene (1) with an unsubstituted or substituted acrylic acid (2) in the presence of a sulfonic acid reagent to make the cyclic organic compound (3) R1(H)C&#x2550;C(H)R2 (1) 

Synthesis of cyclic organic compounds

Embodiments relate to a polymeric scale inhibitor that is a polycarboxylic acid copolymer comprising acrylic acid, methacrylic acid, and styrene sulfonic acid. The polymeric scale inhibitor compositions are particularly suitable for high pressure/high temperature scale inhibition treatment of oil, gas, geothermal production wells and/or subterranean formations.

Thermally stable scale inhibitor compositions

A curable composition including (a) at least one epoxide compound comprising: (i) at least one solid or semi-solid epoxy resin; and (ii) at least one divinylarene dioxide resin compound; and (b) at least one hardener; wherein the curable composition being cured comprises a cured thermoset product having a Tg of greater than about 120&#xb0; C. A thermoset can be prepared from the above curable composition.

Curable epoxy resin compositions

Growing community of inventors

Lake Jackson, TX, United States of America

Angela I Padilla-Acevedo