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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：US10329364B2
公开(公告)日：2019-06-25
申请号：US15300373
申请日：2015-02-05
发明人： Richard B. Pannell , David M. Glowczwski , Chi-I Kuo , Timothy R. Lynn , Fathi David Hussein , Phuong A. Cao , Wesley R. Mariott , Michael D. Awe
IPC分类号： C08F4/64 , C08F4/72 , C08F210/16 , C08F10/02 , B01J31/02 , B01J31/16 , B01J31/18 , B01J31/22 , C08F4/659 , C08F4/6592
摘要： Polymerization catalyst compositions are provided as are methods of their preparation. The compositions comprise fatty amines and find advantageous use in olefin polymerization processes. The catalyst composition comprises at least one supported polymerization catalyst wherein the catalyst composition is modified with at least one fatty amine wherein the fatty amine is substantially free of particulate inorganic material.
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公开(公告)号：US20210284770A1
公开(公告)日：2021-09-16
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： C08F210/16 , C08F4/659 , C07F17/00 , C08J5/18 , C08F210/02 , C08F4/76 , C08F2/00 , 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：US10221254B2
公开(公告)日：2019-03-05
申请号：US15564456
申请日：2016-04-06
发明人： Brandon C. Locklear , R. Eric Pequeno , Richard B. Pannell , Fathi David Hussein , Rich John Stolz , William A. Matthews
IPC分类号： C08F2/34 , C08F2/38 , C08F10/00 , C08F4/6592 , C08F110/02 , B01J8/18 , C08F4/659
摘要： A method for transitioning a gas phase polymerization reactor between metallocene catalysts is provided. The method comprises first reducing the superficial gas velocity and increasing the height of the fluidized bed within the reactor prior to stopping a feed comprising a first metallocene catalyst. The method further comprises introducing a first polymerization neutralizer to the reactor, wherein the first polymerization reactor does not comprise water, and then introducing a second polymerization neutralizer to the reactor, wherein the second polymerization neutralizer is different from the first polymerization neutralizer. After this, the method comprises purging the reactor with an inert gas and then introducing a feed comprising a second metallocene catalyst to the reactor.
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公开(公告)号：US20170240674A1
公开(公告)日：2017-08-24
申请号：US15586680
申请日：2017-05-04
发明人： Richard B. Pannell , David M. Glowczwski , Chi-I Kuo , Timothy R. Lynn , Fathi David Hussein , Phuong A. Cao , Wesley R. Mariott , Michael D. Awe
IPC分类号： C08F210/16
CPC分类号： C08F210/16 , B01J31/0202 , B01J31/0237 , B01J31/0271 , B01J31/04 , B01J31/1805 , B01J31/2295 , B01J2531/48 , B01J2531/49 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F4/65927 , C08F2410/01 , C08F2410/02 , C08F2/005 , C08F210/14 , C08F2500/12 , C08F2500/07
摘要： Continuity compositions are provided as are methods of their preparation. The compositions comprise metal carboxylate salts and fatty amines and find advantageous use in olefin polymerization processes.
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公开(公告)号：US11034783B2
公开(公告)日：2021-06-15
申请号：US16278212
申请日：2019-02-18
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： C08L23/08 , C08F210/16 , C08F4/6592 , C08F4/659 , C07F17/00 , C08J5/18 , C08F210/02 , C08F4/76 , C08F2/00 , C08F2/34 , C08F210/14 , C08F210/08
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：US10399052B2
公开(公告)日：2019-09-03
申请号：US15528976
申请日：2015-11-24
发明人： Bruce J. Savatsky , Natarajan Muruganandam , Timothy R. Lynn , James M. Farley , Daniel P. Zilker, Jr. , Fathi David Hussein
摘要： The use of induced condensing agent (ICA) in fluidized bed gas phase reactor systems enables higher production rates but can affect the resulting polyolefins melt index. The effect the increased ICA concentration may have on a melt index may be counteracted, if necessary, by altering the concentration of olefin monomer within the reactor system.
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公开(公告)号：US20190177452A1
公开(公告)日：2019-06-13
申请号：US16278212
申请日：2019-02-18
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： C08F210/16 , C08J5/18 , C08F210/02 , C07F17/00 , C08F4/659 , C08F2/00 , C08F2/34 , C08F4/76
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：US10167351B2
公开(公告)日：2019-01-01
申请号：US15527023
申请日：2015-11-24
发明人： Bruce J. Savatsky , Natarajan Muruganandam , Timothy R. Lynn , James M. Farley , Daniel P. Zilker, Jr. , Fathi David Hussein
IPC分类号： B01J8/18 , C08F2/34 , C08F110/02 , C08F10/02
摘要： The catalyst productivity of a polyolefin catalyst in the methods disclosed herein may be increased by increasing the concentration of an induced condensing agent (ICA) in the reactor system. The effect the increased ICA concentration may have on a melt index may be counteracted, if necessary, in various ways.
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公开(公告)号：US20170259236A1
公开(公告)日：2017-09-14
申请号：US15528976
申请日：2015-11-24
发明人： Bruce J. Savatsky , Natarajan Muruganandam , Timothy R. Lynn , James M. Farley , Daniel P. Zilker, Jr. , Fathi David Hussein
CPC分类号： B01J8/1809 , B01J8/24 , B01J2208/00539 , C08F2/001 , C08F2/34 , C08F10/02 , C08F110/02 , C08F2500/12
摘要： The use of induced condensing agent (ICA) in fluidized bed gas phase reactor systems enables higher production rates but can affect the resulting polyolefins melt index. The effect the increased ICA concentration may have on a melt index may be counteracted, if necessary, by altering the concentration of olefin monomer within the reactor system.
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