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公开(公告)号：US12049527B2
公开(公告)日：2024-07-30
申请号：US17276912
申请日：2019-09-10
IPC分类号： C08F210/16 , C08F4/659 , F16L9/12 , B29C48/00 , B29C48/09 , B29K23/00 , B29K105/00 , B29L23/00
CPC分类号： C08F210/16 , C08F4/65912 , C08F4/65916 , F16L9/12 , B29C48/0019 , B29C48/09 , B29K2023/08 , B29K2105/0085 , B29L2023/22 , C08F2800/10
摘要： A bimodal ethylene-co-1-hexene copolymer composition consisting of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a melt property performance defined by a combination of melt index (5 kg), melt strength, and, optionally, shear thinning properties, and, when in solid form, is characterized by a slow crack growth property performance defined by a combination of strain hardening modulus and accelerated full-notch creep test performance. A pipe consisting of the bimodal ethylene-co-1-hexene copolymer composition. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer composition. A method of making the pipe. A manufactured article, which is not a pipe, comprising the bimodal ethylene-co-1-hexene copolymer composition.
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公开(公告)号：US20230250204A1
公开(公告)日：2023-08-10
申请号：US18134800
申请日：2023-04-14
发明人： Sun-Chueh Kao , Francis C. Rix , Ching-Tai Lue , Mark G. Goode , Dongming Li
IPC分类号： C08F210/16 , C08F4/659 , C07F17/00 , C08J5/18 , C08F4/643 , C08F210/02 , C08F4/76 , C08F2/00 , C08F2/34
CPC分类号： C08F210/16 , C08F4/65904 , C07F17/00 , C08J5/18 , C08F4/6432 , C08F210/02 , C08F4/76 , C08F2/00 , C08F2/34 , C08L23/0815
摘要： Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a second catalyst compound that are co-supported to form a commonly supported catalyst system. The first catalyst compound includes a compound with the general formula (C5HaR1b)(C5HcR2d)HfX2. The second catalyst compound comprises the following formula:
wherein each R3 or R4 is independently H, a hydrocarbyl group, a substituted hydrocarbyl group, or a heteroatom group, wherein each R3 or R4 may be the same or different, and each X is independently a leaving group selected from a labile hydrocarbyl, a substituted hydrocarbyl, a heteroatom group, or a divalent radical that links to an R3 group.-
公开(公告)号：US11708438B2
公开(公告)日：2023-07-25
申请号：US17330942
申请日：2021-05-26
发明人： Timothy M. Boller , Ching-Tai Lue , Francis C. Rix , Daniel P. Zilker, Jr. , C. Jeff Harlan , James M. Farley , Fathi David Hussein , Dongming Li , Steven A. Best
IPC分类号： C08F4/6592 , C08F4/653 , C08F210/16 , C08L23/08 , C08F4/659 , C07F17/00 , C08J5/18 , C08F4/643 , C08F210/02 , C08F4/76 , C08F2/00 , C08F2/34 , C08F210/14 , C08F210/08
CPC分类号： C08F210/16 , C07F17/00 , C08F2/00 , C08F2/34 , C08F4/6432 , C08F4/65904 , C08F4/76 , C08F210/02 , C08J5/18 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F4/65927 , C08F210/08 , C08F210/14 , C08F2410/02 , C08F2420/00 , C08F2420/01 , C08F2500/01 , C08F2500/02 , C08F2500/08 , C08F2500/09 , C08F2500/10 , C08F2500/11 , C08F2500/12 , C08F2500/13 , C08F2500/18 , C08F2800/20 , C08J2323/08 , C08L23/0815 , C08F210/16 , C08F4/65904 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/10 , C08F2500/08 , C08F210/16 , C08F210/14 , C08F2500/08 , C08F2500/12 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/10 , C08F2500/08 , C08F2500/03 , C08F210/16 , C08F2/00 , C08F210/16 , C08F2/34
摘要： A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.
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公开(公告)号：US11608396B2
公开(公告)日：2023-03-21
申请号：US17201557
申请日：2021-03-15
发明人： Donna J. Crowther , C. Jeff Harlan , Jackie Lovell , Haiqing Peng
IPC分类号： C08F4/6592 , C08F210/16 , C08J5/18 , C07F17/00 , B01J31/22 , C07F7/08 , C08F110/02 , C08F210/14 , C08F4/659
摘要： Catalyst systems and methods for making and using the same are disclosed. A catalyst composition is provided that includes a catalyst compound supported to form a supported catalyst system, the catalyst compound including: where each of R1, R2, R3, R4, R5, R6, R7 and X are as discussed herein.
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公开(公告)号：US11518825B2
公开(公告)日：2022-12-06
申请号：US17040166
申请日：2019-03-04
发明人： Wesley R. Mariott , John F. Szul , Haiqing Peng , James M. Farley , Bruce J. Savatsky , Brandon C. Locklear
摘要： Embodiments of the present disclosure are directed towards catalyst formulations including a metallocene and a stearic compound selected from bis 2-hydroxyethyl stearyl amine, aluminum distearate, and combinations thereof, where the metallocene is represented by the following formula: (Formula (I)) wherein each n-PR is n-propyl, and each X is independently CH3, Cl, or F.
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公开(公告)号：US11377461B2
公开(公告)日：2022-07-05
申请号：US17156786
申请日：2021-01-25
IPC分类号： C07F17/00
摘要： A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cycloheptene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make the cyclic organic compound. Also, a method of synthesizing a ligand for a transition metal, and a related substituted ligand-metal complex and catalyst, from the unsubstituted or substituted cycloheptene and unsubstituted or substituted acrylic acid. Also, the cyclic organic compound, ligand, and substituted ligand-metal complex and catalyst synthesized thereby. Also a method of polymerizing an olefin with the catalyst to give a polyolefin, and the polyolefin made thereby.
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公开(公告)号：US11377460B2
公开(公告)日：2022-07-05
申请号：US17042244
申请日：2019-03-20
发明人： John F. Szul , E. J. Markel , R. Eric Pequeno , Bruce J. Savatsky
IPC分类号： C08F2/00 , C08F210/16 , C08F4/6592 , C07F17/00
摘要： Embodiments of the present disclosure are directed towards methods of adjusting melt index and/or density utilizing a metallocene complex represented by Formula (I): wherein each n-Pr is n-propyl, and each X is independently CH3, CI, Br, or F.
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公开(公告)号：US11203609B2
公开(公告)日：2021-12-21
申请号：US16613155
申请日：2018-05-16
发明人： C. Jeff Harlan , Ching-Tai Lue
IPC分类号： C07F17/00 , C08F4/6592 , C08F210/16 , C08F4/659
摘要： Embodiments of the present disclosure are directed towards metal complexes that can be utilized to form polymers. As an example, the present disclosure provides a metal complex of Formula I: wherein each Me represents methyl.
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公开(公告)号：US20210380737A1
公开(公告)日：2021-12-09
申请号：US17276912
申请日：2019-09-10
IPC分类号： C08F210/16 , C08F4/659 , F16L9/12
摘要： A bimodal ethylene-co-1-hexene copolymer composition consisting of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a melt property performance defined by a combination of melt index (5 kg), melt strength, and, optionally, shear thinning properties, and, when in solid form, is characterized by a slow crack growth property performance defined by a combination of strain hardening modulus and accelerated full-notch creep test performance. A pipe consisting of the bimodal ethylene-co-1-hexene copolymer composition. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer composition. A method of making the pipe. A manufactured article, which is not a pipe, comprising the bimodal ethylene-co-1-hexene copolymer composition.
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公开(公告)号：US11180577B2
公开(公告)日：2021-11-23
申请号：US16469867
申请日：2017-12-06
发明人： Ping Cai , Francois Alexandre , Mark G. Goode
IPC分类号： C08F2/01 , C08F2/34 , C08F4/24 , C08F210/02
摘要： Embodiments of the present disclosure are directed towards methods for rating polymerization processes based upon a first cracking index value and a second cracking index value.
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