Dow Global Technolgoies LLC

The Dow Chemical Company

Rohm and Haas Company

Dow Global Technology Inc.

Dow Global Technoloiges LLC

Daniel J Arriola

Timothy Todd Wenzel

David D Devore

Francis J Timmers

Phillip Dene Hustad

Edmund M Carnahan

Roger L Kuhlman

Gordon R Roof

Jerzy Klosin

James C Stevens

Yunwa Wilson Cheung

Colin Li Pi Shan

Robert D J Froese

Benjamin C Poon

Richard E Campbell, Jr

Brad C Bailey

Ravi B Shankar

Wanglin Yu

David H Bank

Paul C Vosejpka

Zenon Lysenko

Thomas P Clark

Jasson T Patton

John Robert Briggs

Thoi H Ho

Arkady L Krasovskiy

Michael Leo Tulchinsky

John W Kramer

Martin R Greaves

Cornelis F J Den Doelder

Daniel A Hickman

Ruth Figueroa

Pamela J Stirn

Brian A Jazdzewski

David D Graf

Nicole L Wagner

Teresita Kashyap

Paul R Elowe

Guenter A Jueptner

Brian G Landes

Matthew D Christianson

Todd D Senecal

Sara B Klamo

Anna V Davis

Bryan D Stubbert

Oscar David Redwine

Andre B Argenton

Marilyn Bokota

Kirk Walton Limbach

Kevin A Frazier

Endre Szuromi

Suh Joon Han

Robert L Sammler

Victor J Sussman

Andrew J Young

Keran Lu

Jeffrey A Herron

Matthew T Bishop

Wen-Sheng Lee

Curt N Theriault

Thomas J McKeand

D Wayne Blaylock

Jeffrey C Munro, Jr

Robert DJ Froese

Stephen E Hahn

Austin J Smith

Jianbo Hou

Rachel Em Brooner

Cornelis FJ Den Doelder

Jerzy J Klosin

Martin R Greavis

Brian A Jazdazewski

The disclosure are directed to a process for polymerizing ethylene-based polymers. The process includes polymerizing ethylene and optionally one or more (C-C)α-olefin monomer, and at least one diene, in the presence of at least one multi-chain catalyst and at least one single-chain catalyst. The process may include a solvent. The multi-chain catalyst in the process includes a plurality of polymerization sites. Long-chain branched polymers are synthesized by connecting the two polymer chains of the multi-chain catalyst with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization. The ethylene-based polymers are produced and include at least two molecular weight polymer fractions. The multi-chain catalyst produces the high molecular weight fraction, which is the long-chain branched polymer.

Process for producing long-chain branched ethylene-based polymers

The present process embodiments for synthesizing long-chain branched copolymers include contacting together one or more C-Calkene monomers, at least one diene or polyene, optionally a solvent, and a multi-chain catalyst. The multi-chain catalyst includes a plurality of polymerization sites and produces at least two polymer chains of the C-Calkene monomers, each polymer chain polymerizing at one of the polymerization sites. The process synthesizes the long-chain branched polymers by connecting the two polymer chains with the diene or polyene, the joining of the two polymer chains being performed in a concerted manner during the polymerization.

Process of polymerizing tetra-functional long-chain branched polyolefin resins

Embodiments of this disclosure include polymers comprising the polymerized product of ethylene, at least one diene comonomer, and optionally at least one Cto Ccomonomer. The polymer comprises tri-functional long-chain branches resulting from the diene that occur at a frequency of at least 0.03 per 1000 carbon atoms of the polymer. The diene has a structure according to formula (I):

Tri-functional long-chain branched polyolefin

Ethylene-based polymers of this disclosure include an average g′ less than 0.86, where the average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector; and a molecular weight tail quantified by an MWD area metric, A, and Ais less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.

Tetra-functional long-chain branched ethylene-based polymers

Ethylene-based polymers of this disclosure include a melt viscosity ratio (V/V) at 190° C. of at least 10, where Vis the viscosity of the ethylene-based polymer at 190° C. at a shear rate of 0.1 radians/second, and Vis the viscosity of the ethylene-based polymer at 190° C. at a shear rate of 100 radians/second; and a molecular weight tail quantified by an MWD area metric, A, and Ais less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.

Ethylene-based polymers comprise reaction products of polymerizing ethylene monomer, at least one diene or polyene comonomer, and optionally at least one Cto Ccomonomer under defined polymerization reaction conditions, the ethylene-based polymer having: an M/Mgreater than 1.20. The Mis the initial weight-average molecular weight of a comparative ethylene-based polymer by gel permeation chromatography. The comparative ethylene-based polymer being a reaction product of polymerizing ethylene monomer and all Cto Ccomonomers present in the ethylene-based polymer, if any, without the at least one polyene comonomer, under the defined polymerization reaction conditions; and a molecular weight tail quantified by an MWD area metric, A, and Ais less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.

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

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

A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein oxygen concentration at a reactor outlet is from 1 to 7.5 mol % and wherein pH at a reactor outlet is no greater than 7.5.

Method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst

Processes to prepare lightly branched surfactant products comprise combining at least one olefin and a coordination-insertion catalyst under conditions such that at least one oligomer product is formed. The surfactant products comprise a main carbon chain containing an average of between 0.5 and 2.5 branches, wherein more than 50% of the branches are ethyl branches, wherein the branches are located more than one carbon away from each end of the main carbon chain in more than 20% of surfactant product molecules.

Process for the preparation of lightly-branched hydrophobes and the corresponding surfactants and applications thereof

Processes to prepare branched polyolefins for lubricant applications comprise combining at least one olefin and a coordination-insertion catalyst under conditions such that at least one oligomer product is formed. Low molecular weight by-products are fractionated out and the oligomer product is converted to a saturated hydrocarbon via hydrogenation.

Process for the preparation of branched polyolefins for lubricant applications

A process to prepare a relatively inexpensive utility fluid comprises contacting together ethylene and a coordination-insertion catalyst and, optionally, an alpha-olefin, in a continuously-fed backmixed reactor zone under conditions such that a mixture of a hyperbranched oligomer and a branched oligomer is formed. The hyperbranched oligomer has an average of at least 1.5 methine carbons per oligomer molecule, and at least 40 methine carbons per one-thousand total carbons, and at least 40 percent of the methine carbons is derived from the ethylene, and the average number of carbons per molecule is from 25 to 100, and at least 25 percent of the hyperbranched oligomer molecules has a vinyl group and can be separated from the branched oligomer, which has an average number of carbons per molecule of up to 20. The coordination-insertion catalyst is characterized as having an ethylene/octene reactivity ratio up to 20 and a kinetic chain length up to 20 monomer units.

Hyperbranched ethylene-based oils and greases

A compound has formula (I): wherein in formula (I), Z is a y valent Corganic group, Aand Aare each independently ester containing or non-ester containing and are fluorinated or non-fluorinated, and are independently Calkylene, Ccycloalkylene, Carylene, or Caralkylene, and Acontains a nitrile, ester, or aryl substituent group alpha to the point of attachment with sulfur, L is a heteroatom or a single bond, Xis a single bond, &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;C(&#x2550;O)&#x2014;O&#x2014;, &#x2014;O&#x2014;C(&#x2550;O)&#x2014;, &#x2014;O&#x2014;C(&#x2550;O)&#x2014;O&#x2014;, &#x2014;C(&#x2550;O)&#x2014;NR&#x2014;, &#x2014;NR&#x2014;C(&#x2550;O)&#x2014;, &#x2014;NR&#x2014;C(&#x2550;O)&#x2014;NR&#x2014;, &#x2014;S(&#x2550;O)&#x2014;O&#x2014;, &#x2014;O&#x2014;S(&#x2550;O)&#x2014;O&#x2014;, &#x2014;NR&#x2014;S(&#x2550;O)&#x2014;, or &#x2014;S(&#x2550;O)&#x2014;NR, wherein R is H, Calkyl, Ccycloalkyl or Caryl, Qis an anionic group, Gis a metallic or non-metallic cation, and y is an integer from 1 to 6. A polymer having end groups comprising the reaction product of the compound of formula (I), and a method of making a polymer, are also disclosed.

Photoacid generator compound, polymer comprising end groups containing the photoacid generator compound, and method of making

A composition 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:

Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation

Growing community of inventors

Midland, MI, United States of America

Daniel J Arriola