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公开(公告)号：US10184018B2
公开(公告)日：2019-01-22
申请号：US15379571
申请日：2016-12-15
Applicant: Chevron Phillips Chemical Company LP
Inventor： Mark L. Hlavinka , Qing Yang , Yongwoo Inn , William M. Whitte , John R. Rathman , Steven J. Secora , Daniel G. Hert
IPC: C08F210/16 , C08F4/6592 , C08F4/653 , C08L23/08 , C08F4/659
Abstract: Disclosed herein are ethylene-based polymers having a density greater than 0.945 g/cm3, a high load melt index less than 25 g/10 min, a peak molecular weight ranging from 52,000 to 132,000 g/mol, and an environmental stress crack resistance of at least 250 hours. These polymers have the processability of chromium-based resins, but with improved impact strength and stress crack resistance, and can be used in large-part blow molding applications.
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2.发明申请公开(公告)号：US20200319103A1
公开(公告)日：2020-10-08
申请号：US16906276
申请日：2020-06-19
Applicant: Chevron Phillips Chemical Company LP
Inventor： Eric D. Schwerdtfeger , Daniel G. Hert , Max P. McDaniel
IPC: G01N21/53 , G01N15/06 , C08F2/00 , G01N21/82 , G01N21/85 , B01J8/18 , B01J8/22 , B01J8/20 , B01J19/18 , B01J21/16
Abstract: A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of the reactor feed stream, wherein the reactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the reactor feed stream into a concentration of the solid component in the reactor feed stream. A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of a precontactor feed stream, wherein the precontactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the precontactor feed stream into a concentration of the solid component in a precontactor effluent stream, wherein the precontactor effluent stream comprises the reactor feed stream.
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公开(公告)号：US10214603B2
公开(公告)日：2019-02-26
申请号：US15981489
申请日：2018-05-16
Applicant: Chevron Phillips Chemical Company LP
Inventor： Chung Tso , Carlos A. Cruz , Qing Yang , Max P. McDaniel , Jared L. Barr , Youlu Yu , Yongwoo Inn , Ashish M. Sukhadia , Brandy Rutledge-Ryal , Daniel G. Hert , Kelly Frey , Bill Bridendolph , William Fisher
IPC: C08F10/02 , C08J5/18 , B29D7/01 , B32B27/32 , C08F210/16 , C09D123/08 , C08J7/04 , B32B7/00 , B32B37/15 , B29C47/02 , B29C47/00 , B29C47/92 , C08F210/14
Abstract: A polyolefin having a density of greater than about 0.930 g/ml which when extruded at a temperature in the range of from about 590° F. to about 645° F. and then coated onto a substrate at a rate of from about 300 ft/min to about 1000 ft/min has an edge weave of from about 0 in/side to about 2.5 in/side and a neck-in of less than about 3.0 in/side.
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公开(公告)号：US10113016B2
公开(公告)日：2018-10-30
申请号：US15428183
申请日：2017-02-09
Applicant: Chevron Phillips Chemical Company LP
Inventor： Ashish M. Sukhadia , Max P. McDaniel , Errun Ding , Guylaine St. Jean , Qing Yang , Daniel G. Hert , Chung Ching Tso
IPC: C08F10/02 , C08F210/16 , C08J5/18 , C08L23/08 , C08F210/02 , C08F210/08 , C08F210/14 , C08F4/659 , C08F4/6592
Abstract: Disclosed herein are ethylene-based polymers produced using dual metallocene catalyst systems. These polymers have low densities, high molecular weights, and broad molecular weight distributions, as well as having the majority of the long chain branches in the lower molecular weight component of the polymer, and the majority of the short chain branches in the higher molecular weight component of the polymer. Films produced from these polymers have improved impact and puncture resistance.
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公开(公告)号：US09975976B1
公开(公告)日：2018-05-22
申请号：US15489663
申请日：2017-04-17
Applicant: Chevron Phillips Chemical Company LP
Inventor： Chung Tso , Jared L. Barr , Kelly Frey , Carlos A. Cruz , Youlu Yu , Bill Bridendolph , Qing Yang , Yongwoo Inn , William Fisher , Max P. McDaniel , Ashish M. Sukhadia , Brandy Rutledge-Ryal , Daniel G. Hert
IPC: C08F210/16 , C09D123/08 , C08J7/04 , B32B7/00 , B32B27/32 , B32B37/15 , C08F210/14
CPC classification number: C08F210/16 , B29C47/025 , B32B7/005 , B32B27/327 , B32B37/153 , B32B2250/02 , B32B2307/72 , B32B2323/046 , C08F210/14 , C08F2500/26 , C08J7/047 , C08J2323/20 , C09D123/0815
Abstract: A polyolefin having a density of greater than about 0.930 g/ml which when extruded at a temperature in the range of from about 590° F. to about 645° F. and then coated onto a substrate at a rate of from about 300 ft/min to about 1000 ft/min has an edge weave of from about 0 in/side to about 2.5 in/side and a neck-in of less than about 3.0 in/side.
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Patent Agency Ranking
公开(公告)号：US09970869B2
公开(公告)日：2018-05-15
申请号：US14809147
申请日：2015-07-24
Applicant: Chevron Phillips Chemical Company LP
Inventor： Eric D. Schwerdtfeger , Daniel G. Hert , Max P. McDaniel
CPC classification number: G01N21/532 , B01J19/1837 , B01J21/16 , C08F2/00 , G01N15/06 , G01N21/82 , G01N21/85 , G01N2015/0693 , G01N2021/8416 , G01N2201/062 , G01N2201/08 , C08F10/00 , C08F4/24 , C08F2/01
Abstract: A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of the reactor feed stream, wherein the reactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the reactor feed stream into a concentration of the solid component in the reactor feed stream. A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of a precontactor feed stream, wherein the precontactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the precontactor feed stream into a concentration of the solid component in a precontactor effluent stream, wherein the precontactor effluent stream comprises the reactor feed stream.
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7.发明授权Polymers with improved toughness and ESCR for large-part blow molding applications 有权具有改进韧性的聚合物和用于大型吹塑应用的ESCR公开(公告)号：US09550849B2
公开(公告)日：2017-01-24
申请号：US14995268
申请日：2016-01-14
Applicant: Chevron Phillips Chemical Company LP
Inventor： Mark L. Hlavinka , Qing Yang , Yongwoo Inn , William M. Whitte , John R. Rathman , Steven J. Secora , Daniel G. Hert
IPC: C08L23/08 , C08F4/653 , C08F4/6592 , C08F210/16 , C08F4/659
CPC classification number: C08F210/16 , C08F4/65904 , C08F4/65916 , C08L23/0815 , C08F210/14 , C08F2500/07 , C08F2500/17 , C08F2500/12 , C08F2500/13 , C08F2500/05 , C08F4/65927 , C08F4/65925
Abstract: Disclosed herein are ethylene-based polymers having a density greater than 0.945 g/cm3, a high load melt index less than 25 g/10 min, a peak molecular weight ranging from 52,000 to 132,000 g/mol, and an environmental stress crack resistance of at least 250 hours. These polymers have the processability of chromium-based resins, but with improved impact strength and stress crack resistance, and can be used in large-part blow molding applications.
Abstract translation: 本文公开了具有密度大于0.945g / cm 3，高负荷熔融指数小于25g / 10min，峰值分子量为52,000至132,000g / mol的乙烯基聚合物和环境应力开裂抗性 至少250小时。 这些聚合物具有铬基树脂的加工性，但具有改善的冲击强度和抗应力开裂性，并且可用于大部分吹塑应用。
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公开(公告)号：US09334350B2
公开(公告)日：2016-05-10
申请号：US14639582
申请日：2015-03-05
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Ashish M. Sukhadia , Errun Ding , Chung Ching Tso , Albert P. Masino , Qing Yang , Lloyd W. Guatney , Guylaine St. Jean , Daniel G. Hert
IPC: C08F210/02 , C08F210/16 , C08F210/14 , C08J5/18 , C08L23/08
CPC classification number: C08F210/16 , C08F4/65916 , C08F4/65925 , C08F4/65927 , C08F210/14 , C08F2410/02 , C08F2500/05 , C08F2500/08 , C08F2500/09 , C08F2500/12 , C08J5/18 , C08J2323/08 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2314/06 , C08F4/65904 , C08F2500/04 , C08F2500/07 , C08F2500/26
Abstract: Disclosed herein are broad molecular weight distribution olefin polymers having densities in the 0.895 to 0.930 g/cm3 range, and with improved impact and tear resistance. These polymers can have a ratio of Mw/Mn in the 8 to 35 range, a high load melt index in the 4 to 50 range, less than about 0.008 LCB per 1000 total carbon atoms, and a reverse comonomer distribution.
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公开(公告)号：US20230193001A1
公开(公告)日：2023-06-22
申请号：US17645048
申请日：2021-12-18
Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Inventor： Daniel G. Hert , Bryan G. Kubsch
CPC classification number: C08L23/06 , B01J8/20 , B01J8/1809 , B01J8/1836 , B01J21/08 , B01J23/6522 , C08L23/0815
Abstract: A method of operating a polyethylene reactor system includes feeding ethylene, an optional first comonomer, a diluent, and a chromium-based catalyst to a first polymerization reactor. The method further includes contacting ethylene and the comonomer with the catalyst in the first polymerization reactor to form a first product including a first polyethylene. The method further includes feeding the first product from the first polymerization reactor to a second polymerization reactor. The method further includes contacting ethylene and a second optional comonomer with catalyst from the first reactor in the second polymerization reactor to form a second product including the first polyethylene and a second polyethylene. The method further includes controlling one or both of a molecular weight or a breadth of molecular weight distribution of the second product by adjusting a rate of hydrogen fed to one or both of the first polymerization reactor or the second polymerization reactor.
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10.发明申请公开(公告)号：US20200110027A1
公开(公告)日：2020-04-09
申请号：US16709138
申请日：2019-12-10
Applicant: Chevron Phillips Chemical Company LP
Inventor： Eric D. Schwerdtfeger , Daniel G. Hert , Max P. McDaniel
IPC: G01N21/53 , B01J8/22 , B01J8/20 , B01J8/18 , B01J21/16 , B01J19/18 , G01N21/85 , G01N21/82 , C08F2/00 , G01N15/06
Abstract: A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of the reactor feed stream, wherein the reactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the reactor feed stream into a concentration of the solid component in the reactor feed stream. A method of monitoring a solid component of a reactor feed stream in a polymer production system, comprising (a) measuring a turbidity of a precontactor feed stream, wherein the precontactor feed stream comprises a solid component of a polymerization catalyst system, and (b) translating the turbidity of the precontactor feed stream into a concentration of the solid component in a precontactor effluent stream, wherein the precontactor effluent stream comprises the reactor feed stream.
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