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公开(公告)号：US12065524B2
公开(公告)日：2024-08-20
申请号：US17825122
申请日：2022-05-26
发明人： Byoung Tak Yim , Byung Jun Kim , Jeong Hwan Kim
IPC分类号： C08F210/18 , C08F4/52 , C08F4/68 , C08K3/013 , C08K3/04
CPC分类号： C08F210/18 , C08F4/52 , C08F4/68 , C08K3/013 , C08K3/04
摘要： Provided are an ethylene-propylene-diene monomer (EPDM) copolymer and a method of preparing the same. An EPDM copolymer which has more improved miscibility with inorganic fillers such as carbon black, may further facilitate dispersibility in mixing to further decrease the viscosity of a compound composition, and may provide a compound composition having excellent processability and mechanical properties. A method of preparing the same is also provided.
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2.发明公开公开(公告)号：US20240247085A1
公开(公告)日：2024-07-25
申请号：US18585446
申请日：2024-02-23
发明人： Qing Yang , Max P. McDaniel , Tony R. Crain
IPC分类号： C08F4/659 , C08F4/52 , C08F4/64 , C08F4/6592 , C08F110/02 , C08F210/16
CPC分类号： C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F110/02 , C08F210/16 , C08F4/52 , C08F4/64 , C08F2410/07 , C08F2500/09
摘要： Methods for preparing a metallocene-based catalyst composition that can impact the long chain branching of ethylene homopolymers and copolymers produced using the catalyst composition are described. The catalyst composition can be prepared by contacting a metallocene compound, a hydrocarbon solvent, and a first organoaluminum compound for a first period of time to form a metallocene solution, and then contacting the metallocene solution with an activator-support and a second organoaluminum compound for a second period of time to form the catalyst composition.
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公开(公告)号：US12037421B2
公开(公告)日：2024-07-16
申请号：US18357209
申请日：2023-07-24
发明人： Qing Yang , Ryan N. Rose , Max P. McDaniel , Zhihui Gu
IPC分类号： C08F4/6592 , C08F4/02 , C08F4/52 , C08F4/642 , C08F4/659 , C08F110/02 , C08F210/16
CPC分类号： C08F110/02 , C08F4/025 , C08F4/52 , C08F4/642 , C08F4/65912 , C08F4/65916 , C08F210/16 , C08F2410/07 , C08F2420/00
摘要： Methods for preparing metallocene-based catalyst compositions include the steps of contacting an alcohol compound and an organoaluminum compound for a first period of time to form a precontacted mixture, and contacting the precontacted mixture with an activator-support and a metallocene compound for a second period of time to form the catalyst composition. Such catalyst compositions can contain an activator-support, a metallocene compound, an organoaluminum compound, and a dialkyl aluminum alkoxide, and these catalyst compositions have increased catalytic activity for the polymerization of olefins.
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公开(公告)号：US11897992B2
公开(公告)日：2024-02-13
申请号：US16494136
申请日：2018-03-15
发明人： Jasson T. Patton , Todd D. Senecal , Daniel J. Arriola , Matthew D. Christianson , Gordon R. Roof , David D. Devore , Anna V. Davis
IPC分类号： C08F10/02 , C08F4/64 , C08F4/52 , C08F4/619 , C08F297/08
CPC分类号： C08F4/64193 , C08F4/52 , C08F4/61904 , C08F297/083 , C08F2410/01 , C08F2420/02
摘要： 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.
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公开(公告)号：US20240018278A1
公开(公告)日：2024-01-18
申请号：US18253835
申请日：2021-11-17
发明人： Francis C. RIX , Charles J. HARLAN , KyKA LE , Xiaodan ZHANG
IPC分类号： C08F4/52
CPC分类号： C08F4/52 , C08F2410/01 , C08F2500/04 , C08F2500/17
摘要： The present disclosure relates to processes for forming alumoxanes and catalyst systems thereof for olefin polymerization. In at least one embodiment, a process includes forming a solution by, in an aliphatic hydrocarbon having a boiling point of less than about 70 degrees Celsius, introducing at least one hydrocarbyl aluminum with at least one non-hydrolytic oxygen-containing compound and a support material. The molar ratio of aluminum to non-hydrolytic oxygen in the solution is greater than or equal to 1.5, and the combining is conducted at a temperature of less than about 70 degrees Celsius. The process includes distilling the solution at a pressure of greater than about 0.5 atm to form a supported alumoxane precursor. The process further includes heating the supported alumoxane precursor to a temperature greater than the boiling point of the aliphatic hydrocarbon fluid and less than about 160 degrees Celsius to form a supported alumoxane.
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公开(公告)号：US11845826B2
公开(公告)日：2023-12-19
申请号：US17412341
申请日：2021-08-26
发明人： Qing Yang , Max P. McDaniel , Tony R. Crain
IPC分类号： C08F4/76 , C08F4/64 , C08F4/52 , C08F4/659 , C08F4/6592 , C08F110/02 , C08F210/16
CPC分类号： C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F110/02 , C08F210/16 , C08F4/52 , C08F4/64 , C08F2410/07
摘要： Methods for preparing a metallocene-based catalyst composition that can impact the long chain branching of ethylene homopolymers and copolymers produced using the catalyst composition are described. The catalyst composition can be prepared by contacting a metallocene compound, a hydrocarbon solvent, and a first organoaluminum compound for a first period of time to form a metallocene solution, and then contacting the metallocene solution with an activator-support and a second organoaluminum compound for a second period of time to form the catalyst composition.
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公开(公告)号：US20230265270A1
公开(公告)日：2023-08-24
申请号：US17927558
申请日：2021-05-21
申请人： Borealis AG
CPC分类号： C08L23/12 , B29C55/005 , B29C55/16 , C08F2/18 , C08F4/52 , C08F110/06 , C08K3/08 , H01G4/18 , B29K2023/12
摘要： The present invention relates to a new BOPP film for use in a capacitor film, a new polypropylene homopolymer and a process for manufacturing the polypropylene homopolymer.
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公开(公告)号：US11732064B2
公开(公告)日：2023-08-22
申请号：US15764554
申请日：2016-09-28
发明人： Lixin Sun , David D. Devore
IPC分类号： C08F4/52 , C08F4/64 , C08F8/00 , C08F8/32 , C07C209/66 , C08F110/14 , C08F8/30 , C08F210/16 , C08F8/28 , C07C213/02 , C08F4/659
CPC分类号： C08F8/32 , C07C209/66 , C07C213/02 , C08F8/28 , C08F8/30 , C08F110/14 , C08F210/16 , C08F4/65908 , C08F4/65912 , C08F2410/01 , C08F2800/20 , C08F2810/40 , C08F210/16 , C08F210/14 , C08F10/00 , C08F4/659 , C08F8/32 , C08F8/28 , C08F110/14 , C08F8/32 , C08F8/28 , C08F210/16 , C08F8/30 , C08F110/14 , C08F8/30 , C08F210/16 , C07C209/66 , C07C211/27 , C07C213/02 , C07C217/58
摘要： The present disclosure relates to a one-pot process for synthesizing functional compounds or functional polymers by reacting an aldehyde with an alkyl-zinc or polymeryl-zinc composition in the presence of a specific Lewis acid, wherein the reaction is rapid and facile at high temperatures.
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公开(公告)号：US11718632B2
公开(公告)日：2023-08-08
申请号：US17630358
申请日：2021-03-30
申请人： LG Chem, Ltd.
发明人： Hee Jeong Kim , Gyeong Shin Choi , Won Hee Kim
IPC分类号： C07F5/02 , C08F4/52 , C08F110/10
摘要： The present invention relates to a catalyst composition including an oxonium ion-based catalyst and an aluminum-based cocatalyst, and a method for preparing an isobutene-based polymer using the same.
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公开(公告)号：US11518824B2
公开(公告)日：2022-12-06
申请号：US16755503
申请日：2018-10-05
发明人： Shahram Mihan , Heike Gregorius , Volker Fraaije , Rolf Mulhaupt , Fan Zhong
摘要： A nano platelet gibbsite treated with compound of formula (ORa)3Si—Rb or of formula Rc—COOH wherein Ra equal to or different from each other is a C1-C10 alkyl radical; Rb is a C5-C30 hydrocarbon radical and Rc is a C5-C30 hydrocarbon radical is used as a catalyst support.
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