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公开(公告)号：US11845815B2
公开(公告)日：2023-12-19
申请号：US18094792
申请日：2023-01-09
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. Curren , Rebecca A. Gonzales , Scott E. Kufeld , Joel A. Mutchler , Eric J. Netemeyer , Jamie N. Sutherland , Paul J. Deslauriers , Jeffrey S. Fodor
CPC classification number: C08F10/02 , B01J8/0055 , B01J8/1827 , B01J8/1836 , B01J8/1863 , B01J19/245 , B01J2208/00761
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US11548957B2
公开(公告)日：2023-01-10
申请号：US17074809
申请日：2020-10-20
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. Curren , Rebecca A. Gonzales , Scott E. Kufeld , Joel A. Mutchler , Eric J. Netemeyer , Jamie N. Sutherland , Paul J. Deslauriers , Jeffrey S. Fodor
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US09637573B2
公开(公告)日：2017-05-02
申请号：US15051173
申请日：2016-02-23
Applicant: Chevron Phillips Chemical Company LP
Inventor： Mark L. Hlavinka , Qing Yang , William B. Beaulieu , Paul J. Deslauriers
IPC: C08F210/16 , C08F10/14 , F16L9/127 , F16L9/12 , C08F4/659 , C08F4/6592
CPC classification number: C08F10/14 , C08F4/65912 , C08F4/65927 , C08F210/16 , C08F2500/05 , C08F2500/09 , C08F2500/10 , C08L2203/18 , C08L2205/02 , F16L9/12 , F16L9/127 , C08F210/14 , C08F2500/01 , C08F2500/04 , C08F2500/07 , C08F2500/17 , C08F4/64158 , C08F4/65904
Abstract: A polymer reactor-blend comprising at least a first component having a polydispersity index of greater than about 20 and is present in an amount of from about 1 wt. % to about 99 wt. % based on the total weight of the polymer and a second component having a polydispersity index of less than about 20 and is present in an amount of from about 1 wt. % to about 99 wt. % based on the total weight of the polymer wherein a molecular weight distribution of the second component lies within a molecular weight distribution of the first component.
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公开(公告)号：US12252558B2
公开(公告)日：2025-03-18
申请号：US18386766
申请日：2023-11-03
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. Curren , Rebecca A. Gonzales , Scott E. Kufeld , Joel A. Mutchler , Eric J. Netemeyer , Jamie N. Sutherland , Paul J. Deslauriers , Jeffrey S. Fodor
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US10858458B2
公开(公告)日：2020-12-08
申请号：US16538412
申请日：2019-08-12
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. Curren , Rebecca A. Gonzales , Scott E. Kufeld , Joel A. Mutchler , Eric J. Netemeyer , Jamie N. Sutherland , Paul J. Deslauriers , Jeffrey S. Fodor
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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Patent Agency Ranking
公开(公告)号：US10696759B1
公开(公告)日：2020-06-30
申请号：US16538467
申请日：2019-08-12
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. Curren , Rebecca A. Gonzales , Scott E. Kufeld , Joel A. Mutchler , Eric J. Netemeyer , Jamie N. Sutherland , Paul J. Deslauriers , Jeffrey S. Fodor
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US09791358B2
公开(公告)日：2017-10-17
申请号：US15471414
申请日：2017-03-28
Applicant: Chevron Phillips Chemical Company LP
Inventor： Youlu Yu , Qing Yang , Paul J. Deslauriers , Mark J. Lamborn , Yongwoo Inn
CPC classification number: G01N5/00 , C08F110/02 , C08J5/18 , C08J2323/06 , C08J2323/08 , C08L23/06 , G01N11/00 , G01N11/06 , G01N33/442
Abstract: A method of preparing a polymer article comprising determining a zero-shear viscosity for a polymer sample; sieving the polymer sample to produce a plurality of sieved polymer samples; determining a molecular weight distribution for each of the plurality of sieved polymer samples; determining a zero-shear viscosity for each of the plurality of sieved polymer samples; determining a compositional diversity of each of the plurality of sieved polymer samples based on a ratio of the zero shear viscosity for each of the plurality of sieved polymer samples to the zero shear viscosity for the polymer sample; identifying a polymer sample having a ratio of the zero shear viscosity to zero shear viscosity for the polymer sample of from about 0.5 to equal to or greater than about 3; and preparing a polymer article from the identified polymer sample.
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公开(公告)号：US09645066B1
公开(公告)日：2017-05-09
申请号：US14960047
申请日：2015-12-04
Applicant: Chevron Phillips Chemical Company LP
Inventor： Youlu Yu , Qing Yang , Paul J. Deslauriers , Mark J. Lamborn , Yongwoo Inn
IPC: G01N11/04 , G01N5/00 , C08F110/02 , B29B13/10
CPC classification number: G01N5/00 , C08F110/02 , C08J5/18 , C08J2323/06 , C08J2323/08 , C08L23/06 , G01N11/00 , G01N11/06 , G01N33/442
Abstract: A method of preparing a polymer article comprising determining a zero-shear viscosity for a polymer sample; sieving the polymer sample to produce a plurality of sieved polymer samples; determining a molecular weight distribution for each of the plurality of sieved polymer samples; determining a zero-shear viscosity for each of the plurality of sieved polymer samples; determining a compositional diversity of each of the plurality of sieved polymer samples based on a ratio of the zero shear viscosity for each of the plurality of sieved polymer samples to the zero shear viscosity for the polymer sample; identifying a polymer sample having a ratio of the zero shear viscosity to zero shear viscosity for the polymer sample of from about 0.5 to equal to or greater than about 3; and preparing a polymer article from the identified polymer sample.
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公开(公告)号：US20130319131A1
公开(公告)日：2013-12-05
申请号：US13660747
申请日：2012-10-25
Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Inventor： Yongwoo Inn , Paul J. Deslauriers , Qing Yang , Ashish M. Sukhadia , David C. Rohlfing
CPC classification number: C08F110/02 , C08L23/04 , C08L23/06 , F16L9/00 , F16L9/12 , G01N3/24 , G01N11/04 , G06F17/10 , G16C20/20 , Y10T428/139
Abstract: A method of improving processing of polyethylene resins comprising obtaining a plurality of multimodal metallocene-catalyzed polyethylene samples measuring the shear stress as a function of shear rate for the plurality of multimodal metallocene-catalyzed polyethylene samples using capillary rheometry wherein the measuring yields values for a magnitude of slip-stick, a stress for smooth to matte transition, and a shear rate for smooth to matte transition; and identifying from the plurality of multimodal metallocene-catalyzed polyethylene samples individual multimodal metallocene-catalyzed polyethylene resins having a reduced tendency to melt fracture characterized by a magnitude of slip-stick greater than about 300 psi, a stress for smooth to matte transition greater than about 90 kPa, and a shear rate for smooth to matte transition greater than about 10 s−1.
Abstract translation: 一种改进聚乙烯树脂加工的方法，其包括使用毛细管流变测定法测量剪切应力作为多种多峰茂金属催化聚乙烯样品的剪切速率的函数的多个多峰金属茂催化的聚乙烯样品，其中测量产生大小的值 的滑棒，平滑无光泽过渡的应力和平滑无光泽过渡的剪切速率; 并且从多个多峰茂金属催化的聚乙烯样品中鉴定具有降低的熔融断裂倾向的单个多峰茂金属催化的聚乙烯树脂，其特征在于大于约300psi的滑棒大小，平滑至无光泽转变的应力大于约 90kPa，以及平滑到无光泽转变的剪切速率大于约10s -1。
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公开(公告)号：US10781273B2
公开(公告)日：2020-09-22
申请号：US16234153
申请日：2018-12-27
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. Curren , Rebecca A. Gonzales , Scott E. Kufeld , Joel A. Mutchler , Eric J. Netemeyer , Jamie N. Sutherland , Paul J. Deslauriers , Jeffrey S. Fodor
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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