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公开(公告)号：US20250043037A1
公开(公告)日：2025-02-06
申请号：US18918298
申请日：2024-10-17
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Eric D. Schwerdtfeger , Qing Yang , Carlos A. Cruz , Jinping J. Zhou , Anand Ramanathan , Kathy S. Clear , Zhihui Gu
IPC: C08F4/02 , B01J29/06 , B01J35/61 , B01J35/63 , B01J35/64 , C08F4/619 , C08F4/6192 , C08F210/16
Abstract: Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to 0.37 g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m2/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm3, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.
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公开(公告)号：US20230416423A1
公开(公告)日：2023-12-28
申请号：US18357209
申请日：2023-07-24
Applicant: Chevron Phillips Chemical Company LP
Inventor： Qing Yang , Ryan N. Rose , Max P. McDaniel , Zhihui Gu
IPC: C08F110/02 , C08F4/52 , C08F4/642 , C08F4/02 , C08F210/16
CPC classification number: C08F110/02 , C08F4/52 , C08F4/642 , C08F4/025 , C08F210/16 , C08F2410/07 , C08F2420/00
Abstract: 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：US20220267485A1
公开(公告)日：2022-08-25
申请号：US17179475
申请日：2021-02-19
Applicant: Chevron Phillips Chemical Company LP
Inventor： Ralph W Romig , James E. Hein , Troy Bretz , Zhihui Gu
Abstract: Processes for producing an activated chromium catalyst are disclosed, and these processes comprise contacting a supported chromium catalyst with a gas stream containing from 25-60 vol % oxygen at a peak activation temperature of 550-900° C. to produce the activated chromium catalyst. The linear velocity of the gas stream is 0.18-0.4 ft/sec, and the oxygen linear velocity of the gas stream is 0.05-0.15 ft/sec. The resultant activated chromium catalyst and an optional co-catalyst can be contacted with an olefin monomer and an optional olefin comonomer in a polymerization reactor system under polymerization conditions to produce an olefin polymer.
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公开(公告)号：US20240367155A1
公开(公告)日：2024-11-07
申请号：US18650230
申请日：2024-04-30
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Zhihui Gu , Ted H. Cymbaluk , Anand Ramanathan , Julian Abrego , Taryn L. Huber , David W. Dockter
Abstract: Processes for producing activated chromium catalysts such as titanated chromium/silica catalysts are disclosed, and these processes utilize a multistep process involving exposure to inert and oxidizing atmospheres at specific temperature conditions. The resulting activated chromium catalysts have unexpectedly high melt index potential and can produce ethylene-based polymers with lower gel counts in addition to higher melt indices.
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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
Applicant: Chevron Phillips Chemical Company LP
Inventor： Qing Yang , Ryan N. Rose , Max P. McDaniel , Zhihui Gu
IPC: C08F4/6592 , C08F4/02 , C08F4/52 , C08F4/642 , C08F4/659 , C08F110/02 , C08F210/16
CPC classification number: C08F110/02 , C08F4/025 , C08F4/52 , C08F4/642 , C08F4/65912 , C08F4/65916 , C08F210/16 , C08F2410/07 , C08F2420/00
Abstract: 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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Patent Agency Ranking
公开(公告)号：US11584806B2
公开(公告)日：2023-02-21
申请号：US17179475
申请日：2021-02-19
Applicant: Chevron Phillips Chemical Company LP
Inventor： Ralph W Romig , James E. Hein , Troy Bretz , Zhihui Gu
Abstract: Processes for producing an activated chromium catalyst are disclosed, and these processes comprise contacting a supported chromium catalyst with a gas stream containing from 25-60 vol % oxygen at a peak activation temperature of 550-900° C. to produce the activated chromium catalyst. The linear velocity of the gas stream is 0.18-0.4 ft/sec, and the oxygen linear velocity of the gas stream is 0.05-0.15 ft/sec. The resultant activated chromium catalyst and an optional co-catalyst can be contacted with an olefin monomer and an optional olefin comonomer in a polymerization reactor system under polymerization conditions to produce an olefin polymer.
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公开(公告)号：US12146018B2
公开(公告)日：2024-11-19
申请号：US18415809
申请日：2024-01-18
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Eric D. Schwerdtfeger , Qing Yang , Carlos A Cruz , Jinping J. Zhou , Anand Ramanathan , Kathy S. Clear , Zhihui Gu
IPC: C08F4/64 , B01J29/06 , B01J35/61 , B01J35/63 , B01J35/64 , C08F4/02 , C08F4/76 , C08F210/16 , C08F4/619 , C08F4/6192
Abstract: Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to 0.37 g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m2/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm3, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.
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公开(公告)号：US11912809B2
公开(公告)日：2024-02-27
申请号：US18327119
申请日：2023-06-01
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Eric D. Schwerdtfeger , Qing Yang , Carlos A. Cruz , Jinping J. Zhou , Anand Ramanathan , Kathy S. Clear , Zhihui Gu
IPC: B01J23/00 , C08F4/02 , B01J29/06 , B01J35/10 , C08F210/16
CPC classification number: C08F4/025 , B01J29/06 , B01J35/1019 , B01J35/1042 , B01J35/1047 , B01J35/1061 , C08F210/16 , C08F2420/00
Abstract: Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m2/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm3, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.
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公开(公告)号：US20230159669A1
公开(公告)日：2023-05-25
申请号：US18159119
申请日：2023-01-25
Applicant: Chevron Phillips Chemical Company LP
Inventor： Ralph W. Romig , James E. Hein , Troy Bretz , Zhihui Gu
Abstract: Processes for producing an activated chromium catalyst are disclosed, and these processes comprise contacting a supported chromium catalyst with a gas stream containing from 25-60 vol % oxygen at a peak activation temperature of 550-900° C. to produce the activated chromium catalyst. The linear velocity of the gas stream is 0.18-0.4 ft/sec, and the oxygen linear velocity of the gas stream is 0.05-0.15 ft/sec. The resultant activated chromium catalyst and an optional co-catalyst can be contacted with an olefin monomer and an optional olefin comonomer in a polymerization reactor system under polymerization conditions to produce an olefin polymer.
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公开(公告)号：US20240150501A1
公开(公告)日：2024-05-09
申请号：US18415809
申请日：2024-01-18
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Eric D. Schwerdtfeger , Qing Yang , Carlos A. Cruz , Jinping J. Zhou , Anand Ramanathan , Kathy S. Clear , Zhihui Gu
CPC classification number: C08F4/025 , B01J29/06 , B01J35/615 , B01J35/635 , B01J35/638 , B01J35/647 , C08F210/16 , C08F2420/00
Abstract: Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to 0.37 g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m2/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm3, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.
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