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Применить Всего найдено 17. Отображено 17.
25-07-2002 дата публикации

Bridged gallium or indium containing group 4 metal complexes

Номер: US20020098973A1
Автор: D. Green, David Devore, Jasson Patton, Kevin Frazier, Richard Campbell, Shaoguang Feng
Принадлежит: Campbell Richard E., Devore David D., Frazier Kevin A., Green D. Patrick, Patton Jasson T., Shaoguang Feng

A Group 4 transition metal complex containing a gallium or indium bridging group containing an electron donating group, especially an amido group, linking two groups which may be π-bonding groups or electron donating groups.

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Номер записи: 1
28-02-2008 дата публикации

Supported Bis(Hydroxylarylaryloxy) Catalysts For Manufacture Of Polymers

Номер: US20080051537A1
Автор: Burkhard Wagner, David Devore, Edmund Carnahan, Gregory Godziela, Joseph Coalter, Paul Vosejpka
Принадлежит: Carnahan Edmund M, Coalter Joseph N Iii, Devore David D, Godziela Gregory M, Vosejpka Paul C, Wagner Burkhard E

A supported, heterogeneous catalyst composition for use in polymerization of addition polymerizable monomers to form high molecular weight polymers, comprising: 1) a substrate comprising a solid, particulated, high surface area, surface modified, inorganic oxide compound, 2) a Group 4 metal complex of a bis(hydroxyarylaryloxy) ligand; and optionally 3) an activating cocatalyst for the metal complex.

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Номер записи: 2
23-10-2008 дата публикации

Catalyst Composition Comprising Shuttling Agent for Regio-Irregular Multi-Block Copolymer Formation

Номер: US20080262175A1
Автор: Daniel J. Arriola, David D. Devore, Edmand M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
Принадлежит: Arriola Daniel J, Carnahan Edmand M, Devore David D, Hustad Phillip D, Kuhlman Roger L, Wenzel Timothy T

Copolymers, especially multi-block copolymer containing therein two or more segments or blocks, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C 4-8 α-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers having increased incidence of regio-irregular branching compared to the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

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Номер записи: 3
21-04-2011 дата публикации

Catalytic Olefin Block Copolymers Via Polymerizable Shuttling Agent

Номер: US20110092651A1
Автор: Brian A. Jazdzewski, Daniel J. Arriola, David D. Devore, Edmund M. Carnahan, Francis J. Timmers, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
Принадлежит: Arriola Daniel J, Carnahan Edmund M, Devore David D, Hustad Phillip D, Jazdzewski Brian A, Kuhlman Roger L, Timmers Francis J, Wenzel Timothy T

A polymerization process and the resulting polymer composition, said process comprising polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture.

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Номер записи: 4
05-01-1995 дата публикации

Titanium (ii) or zirconium (ii) complexes and addition polymerization catalysts therefrom

Номер: CA2164525A1
Автор: David D. Devore, David R. Wilson, Francis J. Timmers, James C. Stevens, Lenore H. Crawford, Robert D. Mussell, Robert K. Rosen
Принадлежит: David D. Devore, David R. Wilson, Dow Global Technologies Inc., Francis J. Timmers, James C. Stevens, Lenore H. Crawford, Robert D. Mussell, Robert K. Rosen, The Dow Chemical Company

Novel titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded, group, said complexes corresponding to formula (I), wherein: M is titanium or zirconium in the +2 formal oxidation state; L is a group containing a cyclic, delocalized, anionic, .pi.-system through which the group is bound to M, and which group is also bound to Z: Z is a moiety bound to M via a .sigma.-bond, comprising boron, or a ember of Group 14 of the Periodic Table of the Elements, and also comprising nitrogen phosphorus, sulfur or oxygen, said moiety having up to 60 non-hydrogen atoms; and X is a neutral, conjugated or nonconjugated diene, optionally substituted with one or snore hydrocarbyl groups, said X having up to 40 carbon atoms and forming a .pi.-complex with M; are catalytically activated for use as addition polymerization catalysts. Preferably, L is an optionally substituted cyclopentadienyl or fused ring cyclopentadienyl group.

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Номер записи: 5
18-12-2008 дата публикации

Catalyst Composition Comprising Shuttling Agent for Higher Olefin Multi-Block Copolymer Formation

Номер: US20080311812A1
Автор: Daniel J. Arriola, David D. Devore, Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
Принадлежит: Arriola Daniel J, Carnahan Edmund M, Devore David D, Hustad Phillip D, Kuhlman Roger L, Wenzel Timothy T

Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, are prepared by polymerizing propylene, 4-methyl-1-pentene, or other C 4-8 α-olefin and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

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Номер записи: 6
19-05-2011 дата публикации

Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation

Номер: US20110118416A1
Автор: Benjamin C. Poon, Colin Li Pi Shan, Daniel J. Arriola, David D. Devore, David D. Graf, Edmund M. Carnahan, Gordon R. Roof, James C. Stevens, Pamela J. Stirn, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel, Yunwa Wilson Cheung
Принадлежит: Arriola Daniel J, Carnahan Edmund M, Colin Li Pi Shan, Devore David D, Graf David D, Hustad Phillip D, Kuhlman Roger L, Poon Benjamin C, Roof Gordon R, Stevens James C, Stirn Pamela J, Wenzel Timothy T, Yunwa Wilson Cheung

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: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

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Номер записи: 7
16-04-1993 дата публикации

Preparation of metal coordination complexes

Номер: CA2098381A1
Автор: David D. Devore, David R. Wilson, Peter N. Nickias
Принадлежит: David D. Devore, David R. Wilson, Dow Global Technologies Inc., Peter N. Nickias, The Dow Chemical Company

Constrained geometry metal complexes that are useful in the preparation of catalysts for olefin polymerizations are pre-pared by contacting cyclopentadienyi compounds with metal compounds.

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Номер записи: 8
09-02-2006 дата публикации

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

Номер: WO2005090427A3
Автор: Benjamin C Poon, Daniel J Arriola, David D Devore, David D Graf, Edmund M Carnahan, Gordon R Roof, James C Stevens, Pamela J Stirn, Phillip D Hustad, Pi Shan Colin Li, Roger L Kuhlman, Timothy T Wenzel, Yunwa W Cheung
Принадлежит: Benjamin C Poon, Daniel J Arriola, David D Devore, David D Graf, DOW GLOBAL TECHNOLOGIES INC, Edmund M Carnahan, Gordon R Roof, James C Stevens, Pamela J Stirn, Phillip D Hustad, Pi Shan Colin Li, Roger L Kuhlman, Timothy T Wenzel, Yunwa W Cheung

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: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

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Номер записи: 9
15-02-1996 дата публикации

Biscyclopentadienyl diene complexes

Номер: CA2195789A1
Автор: David D. Devore, David R. Neithamer, Francis J. Timmers, James C. Stevens, Jasson T. Patton, Robert K. Rosen
Принадлежит: David D. Devore, David R. Neithamer, Dow Global Technologies Inc., Francis J. Timmers, James C. Stevens, Jasson T. Patton, Robert K. Rosen, The Dow Chemical Company

Biscyclopentadienyl, Group 4 transition metal complexes are formed by contacting a biscyclopentadienyl Group 4 metal halide hydrocarbyl, hydrocarbyloxy or amide complex with a conjugated diene. Uniquely, the ansa-rac diastereomer is selectively isolated and may be reconverted to the halide form if desired, When combined with standard activating cocatalysts or activated with an activating technique, the complexes form catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

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Номер записи: 10
29-09-2005 дата публикации

Catalyst composition comprising shuttling agent for ethylene copolymer formation

Номер: CA2558251A1
Автор: Daniel J. Arriola, David D. Devore, Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
Принадлежит: Daniel J. Arriola, David D. Devore, Dow Global Technologies Inc., Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel, Union Carbide Chemicals & Plastics Technology Corporation

A composition for use in forming a multi-block copolymer from a single polymerizable monomer, said copolymer containing therein two or more segments or blocks differing in branching index, 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 catalyst, (B) a second olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, at least one of catalyst (A) or catalyst (B) being capable of forming a branched polymer by means of chain walking or reincorporation of in situ formed olefinic polymer chains, and (C) a chain shuttling agent.

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Номер записи: 11
29-09-2005 дата публикации

Catalyst composition comprising shuttling agent for higher olefin multi-block copolymer formation

Номер: CA2557870A1
Автор: Daniel J. Arriola, David D. Devore, Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
Принадлежит: Daniel J. Arriola, David D. Devore, Dow Global Technologies Inc., Dow Global Technologies LLC, Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel, Union Carbide Chemicals & Plastics Technology Corporation

Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, are prepared by polymerizing propylene, 4-methyl- l-pentene, or other C4-8.alpha.-olefin and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

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Номер записи: 12
04-05-2006 дата публикации

Technique for selecting polymerization modifiers

Номер: WO2006007094A3
Автор: Daryoosh Beigzadeh, David D Devore, Duane R Romer, Francis J Timmers, Hendrik E Tuinstra, James C Stevens, Jr Richard E Campbell, Paul C Vosejpka
Принадлежит: Daryoosh Beigzadeh, David D Devore, DOW GLOBAL TECHNOLOGIES INC, Duane R Romer, Francis J Timmers, Hendrik E Tuinstra, James C Stevens, Jr Richard E Campbell, Paul C Vosejpka

A combinatorial method for identifying a catalyst composition for use in the homogeneous addition polymerization of an olefin monomers, said catalyst composition comprising a transition metal compound, a cocatalyst and a polymerization modifier, as well as catalyst compositions and improved olefin polymerization processes resulting therefrom.

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Номер записи: 13
30-09-1993 дата публикации

Addition polymerization catalysts comprising reduced oxidation state metal complexes

Номер: CA2117689A1
Автор: David D. Devore, Francis J. Timmers, James C. Stevens, Peter N. Nickias, Robert K. Rosen
Принадлежит: David D. Devore, Dow Global Technologies Inc., Francis J. Timmers, James C. Stevens, Peter N. Nickias, Robert K. Rosen, The Dow Chemical Company

Addition polymerization catalysts comprising a metal complex containing a Group 4 metal in the +3 oxidation state, a delocalized .pi.-bonding moiety, and at least one stabilizing ligand, optionally in combination with an activating cocatalyst.

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Номер записи: 14
13-04-2000 дата публикации

Bridged metal complexes

Номер: CA2344170A1
Автор: Arthur J. Ashe, III, D. Patrick Green, David D. Devore, Francis J. Timmers, Jasson T. Patton, Kevin A. Frazier, Xinggao Fang
Принадлежит: Arthur J. Ashe, III, D. Patrick Green, David D. Devore, Francis J. Timmers, Jasson T. Patton, Kevin A. Frazier, The Dow Chemical Company, THE REGENTS OF THE UNIVERSITY OF MICHIGAN, Xinggao Fang

A Group 4 transition metal complex containing a boron or aluminum bridging group containing a nitrogen containing electron donating group, especially an amido group.

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Номер записи: 15
28-09-2006 дата публикации

Catalyst composition comprising shuttling agent for regio-irregular multi-block copolymer formation

Номер: CA2600318A1
Автор: Daniel J. Arriola, David D. Devore, Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
Принадлежит: Daniel J. Arriola, David D. Devore, Dow Global Technologies Inc., Edmund M. Carnahan, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel, Union Carbide Chemicals & Plastics Technology Corporation

Copolymers, especially multi-block copolymer containing therein two or more segments or blocks, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C4-8 .alpha.-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers having increased incidence of regio-irregular branching compared to the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.

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Номер записи: 16
09-10-1997 дата публикации

Metallocene cocatalyst

Номер: CA2250577A1
Автор: David D. Devore, David R. Neithamer, Francis J. Timmers
Принадлежит: David D. Devore, David R. Neithamer, Dow Global Technologies Inc., Francis J. Timmers, The Dow Chemical Company

Boratabenzene cocatalysts, especially novel pentafluorophenyl boratabenzenes, are useful cocatalysts or activators with metallocenes. They are less expensive than prior art activators, are soluble and offer more irreversible reactions. Compositions comprise at least one metallocene catalyst and at least one dihydroboratabenzene or anion thereof. Processes include polymerizations with metallocenes in the presence of boratabenzene cocatalyst and activation process including bulk electrolysis techniques.

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Номер записи: 17