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公开(公告)号：US20240199777A1
公开(公告)日：2024-06-20
申请号：US18547963
申请日：2022-02-25
Applicant: Dow Global Technologies LLC
Inventor： Brad C. Bailey , Sukrit Mukhopadhyay
IPC: C08F210/16 , C07F7/00
CPC classification number: C08F210/16 , C07F7/00
Abstract: Catalyst systems include a metal-ligand complex according to formula (I):
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公开(公告)号：US11993675B2
公开(公告)日：2024-05-28
申请号：US17433045
申请日：2020-02-14
Applicant: Dow Global Technologies LLC , Northwestern University
Inventor： Mihir Bhagat , Charmaine Bennett , Youlong Zhu , SonBinh T. Nguyen , Linda Broadbelt , Justin M. Notestein , Matthew E. Belowich , Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson
CPC classification number: C08G18/48 , C08G18/10 , C08G65/005 , C08G65/2609 , C08G65/2654 , C08G65/266
Abstract: A method of producing a polyether alcohol that includes feeding an initiator into a reactor, feeding one or more monomers into the reactor, feeding a polymerization catalyst into the reactor, the polymerization catalyst being a Lewis acid catalyst having a general formula M(R1)1(R2)1(R3)1(R4)0 or 1, separate from feeding the initiator into the reactor, feeding a hydrogen bond acceptor additive into the reactor, the hydrogen bond acceptor additive being a C2 to C20 organic molecule having at least two hydroxyl groups, of which two hydroxyl groups are situated in 1,2-, 1,3-, or 1,4-positions on the organic molecule, and allowing the initiator to react with the one or more monomers in the presence of the polymerization catalyst and the hydrogen bond acceptor additive to form a polyether alcohol having a number average molecular weight greater than a number average molecular weight of the initiator.
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公开(公告)号：US20240158542A1
公开(公告)日：2024-05-16
申请号：US18548015
申请日：2022-02-25
Applicant: Dow Global Technologies LLC
Inventor： Robert David Grigg , Brad C. Bailey , James A. Walker , Sukrit Mukhopadhyay
IPC: C08F4/76
CPC classification number: C08F4/76
Abstract: Catalyst systems comprising one or more metal-ligand complexes according to formula (I).
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公开(公告)号：US11970574B2
公开(公告)日：2024-04-30
申请号：US16646060
申请日：2018-09-14
Applicant: Dow Global Technologies LLC
Inventor： Arjun Raghuraman , William H. Heath , Bruce D. Hook , Wanglin Yu , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson
CPC classification number: C08G65/2654 , C07F5/027 , C08G18/48 , C08G18/4841 , C08G18/4854 , C08G18/7621 , C08G18/7671 , C08G65/266 , C08G65/2684 , C08G2650/22 , C08G2650/38 , C08G2650/44 , C10M107/34 , C11D1/72
Abstract: A method of producing an alcohol ethoxylate surfactant or lubricant, the method including reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)I(R2)I(R3)I(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2, R3, and R4 are each independent, R1 includes a first fluoroalkyl-substituted phenyl group, R2 includes a second fluoroalkyl-substituted phenyl group or a first fluoro/chloro-substituted phenyl group, R3 includes a third fluoroalkyl-substituted phenyl group or a second fluoro/chloro-substituted phenyl group, and optional R4 includes a functional group or functional polymer group, R1 being different from at least one of R2 and R3. The method further including forming an alcohol ethoxylate surfactant or lubricant having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.
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公开(公告)号：US11542350B2
公开(公告)日：2023-01-03
申请号：US17043154
申请日：2019-03-22
Applicant: Dow Global Technologies LLC
Inventor： Richard J. Keaton , Rafael Huacuja , David R. Wilson , Jerzy Klosin , David M. Pearson , Todd D. Senecal , Sukrit Mukhopadhyay , William H. H. Woodward
Abstract: Embodiments of the disclosure include processes of polymerizing olefins. The process includes contacting ethylene and a (C3-C40)alpha-olefin comonomer in the presences of a catalyst system. The catalyst system comprises a procatalyst and a bimetallic activator complex. The bimetallic activator complex comprises an anion and a countercation, and the anion has a structure according to formula (I).
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Patent Agency Ranking
公开(公告)号：US11447586B2
公开(公告)日：2022-09-20
申请号：US17043304
申请日：2019-03-26
Applicant: Dow Global Technologies LLC
Inventor： Richard J. Keaton , Rafael Huacuja , David R. Wilson , Jerzy Klosin , David M. Pearson , Todd D. Senecal , Sukrit Mukhopadhyay , William H. H. Woodward
Abstract: Embodiments of this disclosure include processes of polymerizing olefins, the process comprising contacting ethylene and a (C3-C40)alpha-olefin comonomer in the presence of a catalyst system, the catalyst system comprising a Group IV metal-ligand complex and an ionic metallic activator complex, the ionic metallic activator complex comprising an anion and a countercation, the anion having a structure according to formula (I):formula (I)
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公开(公告)号：US20220235154A1
公开(公告)日：2022-07-28
申请号：US17615440
申请日：2020-05-28
Applicant: Dow Global Technologies LLC
Inventor： Andrew M. Camelio , Brad C. Bailey , Robert D.J. Froese , Sukrit Mukhopadhyay
IPC: C08F4/64 , C08F4/659 , C08F210/14 , C08F210/16
Abstract: Processes for polymerizing polyolefins include contacting ethylene and optionally one or more (C3-C12)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).
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公开(公告)号：US11198760B2
公开(公告)日：2021-12-14
申请号：US16644310
申请日：2018-09-14
Applicant: Dow Global Technologies LLC , Northwestern University
Inventor： Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson , Justin M. Notestein , SonBinh T. Nguyen
Abstract: A method of producing a polyether polyol that includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1. Whereas, M is boron, aluminum, indium, bismuth or erbium, R1, R2, and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R4 includes a functional group or functional polymer group. R1, R2, and R3 are the same fluoroalkyl-substituted phenyl group. The method further includes forming a polyether polyol having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.
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公开(公告)号：US10930859B2
公开(公告)日：2021-02-23
申请号：US16086204
申请日：2017-03-15
Inventor： Kyoung Moo Koh , Mark E. Ondari , Sukrit Mukhopadhyay , Timothy J. Gallagher , Hong-Yeop Na
IPC: H01L51/00 , C07D239/74 , H01L51/50
Abstract: Provided is a composition comprising one or more phenanthroquinazoline-core compounds having structure (I) wherein each of R1 and R2 is independently a substituted or unsubstituted phenyl group.
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公开(公告)号：US20210002467A1
公开(公告)日：2021-01-07
申请号：US16982514
申请日：2019-03-18
Applicant: Dow Global Technologies LLC
Inventor： Matthias Ober , Longyan Liao , Jasson T. Patton , Sukrit Mukhopadhyay , Jerzy Klosin , David D. Devore
Abstract: A process to functionalized organo-metal compounds with silyl-based electrophiles. The process includes combining an organo-metal compound, a silyl-based functionalization agent, and an optional solvent. Functionalized silanes and silyl-terminated polyolefins can be prepared by this process.
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