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公开(公告)号：US20240287225A1
公开(公告)日：2024-08-29
申请号：US18647691
申请日：2024-04-26
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Patrick C. Chen , Mark H. Li , Jennifer L. Rapp , Pramod J. Nandapurkar , Brian H. Wahn , Babak Lotfizadehdehkordi , Craig J. Emett , Najeeb M. Kuzhiyil , Jian Yang
IPC: C08F210/16 , C07C2/30 , C07C2/32 , C08F4/659 , C08F4/6592
CPC classification number: C08F210/16 , C07C2/30 , C07C2/32 , C08F4/65908 , C08F4/65912 , C08F4/65922
Abstract: In at least one embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin to a first catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions to form a first reactor effluent. The first alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes at least 60 wt % of PAO dimer and 40 wt % or less of higher oligomers, where the higher oligomers are oligomers that have a degree of polymerization of 3 or more. The process includes introducing the first reactor effluent and a second alpha-olefin to a second catalyst composition including an acid catalyst in a second reactor to form a second reactor effluent comprising PAO trimer.
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2.发明公开公开(公告)号：US20230212330A1
公开(公告)日：2023-07-06
申请号：US18000417
申请日：2021-05-27
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , Hua Zhou , Jo Ann M. Canich , Jennifer L. Rapp
IPC: C08F4/76 , C08F2/06 , C08F110/14
CPC classification number: C08F4/76 , C08F2/06 , C08F110/14 , C08F2410/01 , C08F2420/08 , C08F2420/12
Abstract: This invention relates to a method comprising contacting C3-C32 alpha olefin with catalyst system comprising activator and catalyst of the formula wherein: M is Hf or Zr; T is a bridging group; each X is independently a leaving group; R1 and R2 are independently hydrogen, or a Ci-Gto optionally substituted hydrocarbyl group, halide, or siloxyl group; R3, R4, R5 and R6 are independently a Ci-Gto optionally substituted hydrocarbyl, halocarbyl, silylcarbyl, aminocarbyl, or siloxyl group; and A is an aliphatic, aromatic or heteroaromatic ring, optionally bearing one or more additional fused rings which may be aliphatic, aromatic or heteroaromatic; obtaining a plurality of vinyl-terminated polyalphaolefins (PAOs) having at least 30 mol % vinyl terminated PAO's.
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公开(公告)号：US11613593B2
公开(公告)日：2023-03-28
申请号：US17173850
申请日：2021-02-11
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jo Ann M. Canich , Jian Yang , Alexander Z. Voskoboynikov , Andrey F. Asachenko , Oleg V. Samsonov , Georgy P. Goryunov
Abstract: Metallocene complexes represented by the structure below are useful for alpha olefin oligomerization in the presence of an activator to generate polyalphaolefins having a high percentage of vinylidene termination and relatively low Mn values. M is a group 4 transition metal. A is a bridging group having one bridging atom extending between a first indenyl ring and a second indenyl ring. Each X is independently an anionic ligand, or two Xs are joined and bound to M to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand. R1, R1′, R3, R3′, R4, R4′, R7 and R7′ are hydrogen. R5, R5′, R6, and R6′ are independently a C1-C10, optionally substituted, hydrocarbyl group, or R5 and R6 and/or R5′ and R6′ are bonded together to form an optionally substituted hydrocarbyl ring structure.
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公开(公告)号：US11214631B2
公开(公告)日：2022-01-04
申请号：US16182856
申请日：2018-11-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , Gregory J. Karahalis , Timothy M. Boller , Yan Jiang
IPC: C07F17/00 , C08F4/6592 , C08F210/16 , C08F10/02 , C08F2/34
Abstract: This invention relates to catalyst systems comprising a catalyst compound having a bridged group 4 metal metallocene (where the bridge preferably contains an (Me2Si)2 group, an activator, and a support material. In some embodiments, the present disclosure provides for polyolefins and a process for producing a polyolefin composition comprising contacting at least one olefin with a catalyst system.
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公开(公告)号：US11001657B2
公开(公告)日：2021-05-11
申请号：US16153256
申请日：2018-10-05
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , Gregory J. Karahalis
IPC: C07F17/00 , C08F4/6592 , C08F210/16 , C08F210/14 , C08F4/659
Abstract: The present disclosure provides novel unbridged group 4 indacenyl-containing metallocene compounds. The catalyst system may be used for olefin polymerization processes.
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Patent Agency Ranking
公开(公告)号：US10889663B2
公开(公告)日：2021-01-12
申请号：US16192493
申请日：2018-11-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , John R. Hagadorn , Gregory J. Karahalis , Timothy M. Boller , Evan J. Morris , Yan Jiang , Patrick Brant
IPC: C07F17/00 , C08F4/6592 , C08F210/16 , C08F4/649 , C08F210/02 , C08F210/14 , C08F4/659 , C08J5/18 , C08F2/34
Abstract: The present disclosure relates to asymmetric ansa-metallocene catalyst compounds that include at least one indenyl ligand substituted at the 3-position with a C3-C40 α-branched alkyl, such as 1-methylethyl, 1-methylpropyl, 1-methylbutyl, 1-ethylbutyl, 1,3-dimethylbutyl, 1-methyl-1-ethylbutyl, 1,1-diethylbutyl, 1-propylpentyl, and the like. Catalyst systems prepared with the catalyst compounds, polymerization methods using such catalyst systems, and polyolefins made using the polymerization methods are also described.
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公开(公告)号：US10807998B2
公开(公告)日：2020-10-20
申请号：US15852410
申请日：2017-12-22
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , Xiongdong Lian
IPC: C08F10/06 , C07F17/00 , C07F7/00 , B01J31/22 , C08F110/06 , C08F210/16 , C08F4/76 , C08F4/659
Abstract: The present disclosure relates to bridged metallocene catalysts that include at least one indenyl ligand substituted at the 2-position with a C3-C10 branched alkyl, such as isopropyl. Catalyst systems including the catalysts, polymerization processes using the catalysts, and polymers made using the catalysts are also described.
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公开(公告)号：US09644047B2
公开(公告)日：2017-05-09
申请号：US14324408
申请日：2014-07-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , Matthew W. Holtcamp , Garth R. Giesbrecht , Gregory S. Day , Jo Ann M. Canich , Lian Xiongdong
IPC: C07F17/00 , C08F4/6592 , C08F10/00 , C08F10/06 , C08F4/659
CPC classification number: C08F10/06 , C07F17/00 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F4/65927 , C08F110/06 , C08F2500/03 , C08F210/06 , C08F210/02 , C08F210/16
Abstract: This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound having two indenyl ligands with identical substitution including, for example, cyclopropyl groups and substituted phenyl groups at the 2 and 4 positions of the catalyst, respectively, where the substituents are at the 3′ and 5′ positions of the phenyl groups.
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9.发明申请Substituted Bis Indenyl Metallocene Catalyst Compounds Comprising -Si-Si- Bridge 有权包含-Si-Si-桥的取代的双茚基茂金属催化剂化合物公开(公告)号：US20170015686A1
公开(公告)日：2017-01-19
申请号：US15160821
申请日：2016-05-20
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jian Yang , Matthew W. Holtcamp , Gregory S. Day , Xiongdong Lian , Xuan Ye
CPC classification number: C07F17/00 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F210/16 , C08F210/14 , C08F2500/03 , C08F2500/12 , C08F2500/10 , C08F10/00
Abstract: This invention relates to novel bridged bis indenyl metallocene catalyst compounds where the bridge is —((R15*)2Si—Si(R15)2)— wherein, each R15 and R15* is identical or different and is a substituted or unsubstituted, branched or unbranched C1-C20 alkyl group, preferably each R15 together do not form a ring, and/or each R15* together do not form a ring, and/or R15 and R15* together do not form a ring. This invention also relates to polymerization processes to produce polymer and to polymer compositions produced by the methods described.
Abstract translation: 本发明涉及桥接为 - （（R 15 *）2 Si-Si（R 15）2） - 的桥连双茚基金属茂催化剂化合物，其中每个R 15和R 15 *相同或不同，并且是取代或未取代的支链或 未分支的C 1 -C 20烷基，优选每个R 15一起不形成环，和/或每个R 15 *不一起形成环，和/或R 15和R 15 *不一起形成环。 本发明还涉及通过所述方法制备聚合物和聚合物组合物的聚合方法。
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公开(公告)号：US09279024B2
公开(公告)日：2016-03-08
申请号：US14510806
申请日：2014-10-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Matthew W. Holtcamp , Jian Yang , Celestino M. Perez, Jr. , Gregory S. Day , Rohan A. Hule
IPC: C08F2/38 , C08F4/6592 , C08F110/06 , C08F210/06 , C08L23/06 , C08L23/10 , C08F4/76 , C08F10/06 , C08F2/00 , C08L23/12 , C08F4/659
CPC classification number: C08F210/06 , C08F2/001 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F4/76 , C08F10/06 , C08F110/06 , C08L23/10 , C08L23/12 , C08F2500/12 , C08F2500/04 , C08F2500/05
Abstract: This invention relates to processes using staged hydrogen addition in propylene polymerization. Using this process, broad/bi-modal MWD iPP with excellent stiffness properties and melt flow rates were produced.
Abstract translation: 本发明涉及在丙烯聚合中使用分阶段加氢的方法。 使用该方法，产生具有优异刚度性能和熔体流动速率的宽双模MWD iPP。
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