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公开(公告)号：US20230235156A1
公开(公告)日：2023-07-27
申请号：US18007814
申请日：2021-06-04
发明人： Alexander Williamson , Shadid Askar , Joel D. Wieliczko , Cornelis F.J. Den Doelder , Mridula Kapur , Kurt F. Hirsekorn , Evelyn Auyeung , Bo Liu , Maria C. Zandueta , John P. O'Brien , Stephanie M. Whited
CPC分类号： C08L23/0815 , C08L23/06 , C08L2205/025 , C08L2314/02
摘要： Embodiments are directed towards polyolefin compositions including a high molecular weight polyolefin and a low molecular weight polyolefin.
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公开(公告)号：US20220402855A1
公开(公告)日：2022-12-22
申请号：US17773583
申请日：2020-12-17
发明人： Evelyn Auyeung , Arkady L. Krasovskiy , Jaclyn Murphy , Bryan D. Stubbert , Anna V. Davis , Clark H. Cummins
IPC分类号： C07C67/343
摘要： The present disclosure relates to a process for preparing an alpha-substituted acrylate, the process comprising: a) combining starting materials comprising an alpha-(halomethyl) acrylate and an organozinc compound, thereby forming a product comprising the alpha-substituted acrylate.
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公开(公告)号：US20210221956A1
公开(公告)日：2021-07-22
申请号：US15734086
申请日：2019-07-03
发明人： John Roberts , Matthew Belowich , Thomas Peterson , Vladimir Pushkarev , Evelyn Auyeung , Mark Rickard
摘要： A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a selective catalyst. The catalyst includes a salt-anion complex and a free acid.
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4.发明公开公开(公告)号：US20240018290A1
公开(公告)日：2024-01-18
申请号：US18255048
申请日：2021-12-16
发明人： Evelyn Auyeung , Roxanne M. Jenkins , Jasson T. Patton , Jaclyn Murphy , David D. Devore , Rhett A. Baillie , Zhe Zhou , Thomas Wesley Karjala, Jr.
IPC分类号： C08F297/02 , C08F212/08 , C08F210/02
CPC分类号： C08F297/02 , C08F212/08 , C08F210/02
摘要： A process to form a composition comprising an ethylene/vinylarene diblock and/or triblock interpolymer, and comprising at least the following steps: A) polymerizing in a reactor A, a mixture A comprising ethylene, and optionally an alpha-olefin, and optionally a vinylarene, in the presence of at least the following: a) a metal complex S selected from the following: Formula S1, Formula S2, Formula S3, Formula S4 or Formula S5, as described herein: B) polymerizing in a reactor B, a mixture B comprising ethylene, a vinylarene, and optionally an alpha-olefin, in the presence of at least the following: b) a metal complex H selected from the following Formula H1 or Formula H2, as described herein; and wherein step A occurs before step B, or vise-versa, and at least one chain shuttling agent is fed into the first reactor. A composition comprising an ethylene/vinylarene diblock or triblock interpolymer, as described herein.
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公开(公告)号：US20230167222A1
公开(公告)日：2023-06-01
申请号：US17997480
申请日：2021-04-29
发明人： Arkady L. Krasovskiy , Evelyn Auyeung , Bryan D. Stubbert , Anna V. Davis , Jianbo Hou , Clark H. Cummins
IPC分类号： C08F293/00
CPC分类号： C08F293/005 , C08F2438/01
摘要： The present disclosure relates to a process for preparing an olefin-acrylate block copolymer, the process comprising: a) performing atom transfer radical polymerization (ATRP) by combining ATRP materials comprising an acrylate monomer, an initiator having a radically transferrable atom or group, a transition metal compound, and a ligand, thereby forming a macroinitiator; and b) combining reaction materials comprising an alpha-substituted acrylate and the macroinitiator, thereby forming the olefin-acrylate block copolymer.
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公开(公告)号：US20220402856A1
公开(公告)日：2022-12-22
申请号：US17773587
申请日：2020-12-17
发明人： Evelyn Auyeung , Arkady L. Krasovskiy , Jaclyn Murphy , Bryan D. Stubbert , Anna V. Davis , Clark H. Cummins
IPC分类号： C07C67/343
摘要： The present disclosure relates to a process for preparing an alpha-substituted acrylate, the process comprising: a) combining starting materials comprising an alpha-(halomethyl) acrylate and an organoaluminum compound, thereby forming a product comprising the alpha-substituted acrylate.
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公开(公告)号：US20210002393A1
公开(公告)日：2021-01-07
申请号：US16977287
申请日：2019-03-25
IPC分类号： C08F10/02
摘要： A solution polymerization process for producing ethylene-based polymer includes introducing ethylene monomer, hydrocarbon solvent, and Ziegler-Natta catalyst into an entrance of a solution polymerization reactor. An ethylene-based polymer is produced by solution polymerizing the ethylene monomer in hydrocarbon solvent. Subsequently, a catalyst deactivator is introduced into the exit of the solution polymerization reactor, thereby producing hydrochloric acid byproduct. The catalyst deactivator includes long chain carboxylate and at least one cation selected from Groups 1, 2, and 12 of the IUPAC periodic table, with the exception of calcium. The catalyst deactivator reduces the effectiveness of the Ziegler-Natta catalyst and neutralizes the hydrochloric acid by forming a chloride salt other than calcium chloride.
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公开(公告)号：US20230167223A1
公开(公告)日：2023-06-01
申请号：US17997486
申请日：2021-04-30
发明人： Arkady L. Krasovskiy , Evelyn Auyeung , Bryan D. Stubbert , Anna V. Davis , Jianbo Hou , Clark H. Cummins
IPC分类号： C08F293/00
CPC分类号： C08F293/005 , C08F2438/03
摘要： The present disclosure relates to a process for preparing an olefin-acrylate block copolymer, the process comprising: a) performing reversible addition-fragmentation chain-transfer (RAFT) polymerization by combining RAFT materials comprising an acrylate monomer, a radical initiator, and a RAFT agent, thereby forming a macroinitiator; and b) combining reaction materials comprising an alpha-substituted acrylate, a radical initiator, and the macroinitiator, thereby forming the olefin-acrylate block copolymer.
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公开(公告)号：US20230151125A1
公开(公告)日：2023-05-18
申请号：US17995860
申请日：2021-04-22
发明人： Linfeng Chen , Jesse C. Beilhart , Kurt F. Hirsekorn , David T. Gillespie , Ian M. Munro , Eduardo Garcia , Nori Williams , Mridula Kapur , Evelyn Auyeung
IPC分类号： C08F4/649 , C08F4/654 , C08F210/00 , C08F110/00
CPC分类号： C08F4/6495 , C08F4/6543 , C08F210/00 , C08F110/00
摘要： Ziegler-Natta (pro)catalyst systems made with an external electron donor compound, methods of synthesis of same, methods of olefin polymerization using same, and polyolefin polymers made thereby. The external electron donor compound is an azaheterocycle.
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公开(公告)号：US20230151124A1
公开(公告)日：2023-05-18
申请号：US17995862
申请日：2021-04-22
发明人： Linfeng Chen , Jesse C. Beilhart , David T. Gillespie , Mridula Kapur , Ian M. Munro , Eduardo Garcia , Nori Williams , Evelyn Auyeung , Kurt F. Hirsekorn
IPC分类号： C08F4/646 , C08F4/651 , C08F210/00 , C08F110/00
CPC分类号： C08F4/6465 , C08F4/651 , C08F210/00 , C08F110/00
摘要： Ziegler-Natta (pro)catalyst systems made with an external electron donor compound, methods of synthesis of same, methods of olefin polymerization using same, and polyolefin polymers made thereby. The external electron donor compound is a (multi-alkoxy)silane.
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