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公开(公告)号：US20180305527A1
公开(公告)日：2018-10-25
申请号：US15972506
申请日：2018-05-07
CPC分类号： C08L23/06 , C08F2/44 , C08F4/16 , C08F110/02 , C08F210/02 , C08K3/08 , C08K3/22 , C08K3/24 , C08K9/02 , C08K2201/011 , C08L23/08 , G01K17/04 , G01N23/20 , G01N2030/486
摘要： Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
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公开(公告)号：US20180305473A1
公开(公告)日：2018-10-25
申请号：US15495116
申请日：2017-04-24
发明人： Eric D. SCHWERDTFEGER , Max P. MCDANIEL , Ted H. CYMBALUK , Jeremy M. PRAETORIUS , Kathy S. CLEAR , Alan L. SOLENBERGER
IPC分类号： C08F10/02
CPC分类号： C08F10/02 , B01J23/26 , B01J35/023 , B01J35/1019 , B01J35/1023 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J37/0203 , B01J37/0205 , B01J37/08 , B01J37/086 , B01J37/14 , B01J2523/00 , C08F2/34 , C08F4/025 , C08F4/24 , C08F4/76 , C08F4/78 , C08F110/02 , B01J2523/41 , B01J2523/47 , B01J2523/67
摘要： A method comprising calcining a catalyst precursor comprising chromium and a silica support material at a temperature in the range of from about 95° C. to about 400° C. in a bed fluidized by a gas flowing at a volumetric flow rate of from about 2.5 to about 30 times the settled volume of the bed per minute to form a calcined catalyst precursor. A method comprising calcining a catalyst precursor comprising chromium and silica at a temperature in the range of from about 95° C. to about 400° C. with a gas flowing through the bed at a gas hourly space velocity of from about 15 to about 200 per hour. A method comprising calcining a catalyst precursor comprising chromium and silica at a temperature in the range of from about 95° C. to about 400° C. with a gas flowing through the bed at a weight hourly space velocity of from about 1.9 to about 240 per hour.
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公开(公告)号：US20180265603A1
公开(公告)日：2018-09-20
申请号：US15918075
申请日：2018-03-12
发明人： Lei Zhang , David Knoeppel
CPC分类号： C08F4/6421 , C08F10/00 , C08F10/02 , C08F110/02 , C08F2410/03 , C08F4/6557 , C08F4/6574 , C08F2500/04 , C08F2500/07 , C08F2500/11 , C08F2500/12 , C08F2500/17 , C08F2500/18 , C08F2500/20 , C08F2500/23 , C08F2500/26
摘要： A process may include contacting ethylene monomer with Ziegler-Natta catalyst to form polyethylene. The Ziegler-Natta catalyst may be formed by contacting an alkyl magnesium compound with an alcohol and a metal reagent to form a blend, and contacting the blend with a first agent to form a solution of reaction product “A”. The solution of reaction product “A” may be contacted with a second agent to form a solid reaction product “B”, and the solid reaction product “B” may be contacted with a third agent to form a solid reaction product “C”. The solid reaction product “C” may be contacted with a fourth agent to form a solid reaction product “D”, and the solid reaction product “D” may be contacted with a fifth agent to form a catalyst component.
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公开(公告)号：US20180236432A1
公开(公告)日：2018-08-23
申请号：US15963136
申请日：2018-04-26
发明人： Vasily Simanzhenkov , Leonid Modestovich Kustov , Aleksey Victorovich Kucherov , Elena Dmitrievna Finashina , Xiaoliang Gao , Edward Christopher Foy , Claire Jeannine Ennis
CPC分类号： B01J19/2475 , B01J19/0046 , B01J19/242 , B01J19/245 , B01J23/002 , B01J23/28 , B01J23/755 , B01J23/847 , B01J27/0576 , B01J35/065 , B01J35/1009 , B01J35/1014 , B01J2219/24 , C07B39/00 , C07C5/48 , C07C7/167 , C07C51/16 , C07C67/04 , C08F110/02 , C10G9/36 , C10G27/04 , C10G45/32 , C10G55/04 , C10G70/00 , C10G70/02 , C10G70/046 , C10G70/048 , C10G2300/1081 , C10G2300/4056 , C10G2400/20 , Y02P20/52 , Y02P30/462 , Y02P30/464 , C07C11/04
摘要： Oxidative dehydrogenation of paraffins to olefins provides a lower energy route to produce olefins. Oxidative dehydrogenation processes may be integrated with a number of processes in a chemical plant such as polymerization processes, manufacture of glycols, and carboxylic acids and esters. Additionally, oxidative dehydrogenation processes can be integrated with the back end separation process of a conventional steam cracker to increase capacity at reduced cost.
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公开(公告)号：US20180230253A1
公开(公告)日：2018-08-16
申请号：US15750391
申请日：2016-07-14
发明人： GIUSEPPINA MARIA ALGOZZINI , DIEGO BRITA , MASSIMO CENCI , GIANNI COLLINA , TIZIANO DALL'OCCO , MARIA DI DIEGO , BENEDETTA GADDI , OFELIA FUSCO , GIAMPIERO MORINI , LORELLA PEDRIALI
IPC分类号： C08F110/06 , C08F110/02 , C08F2/34 , C08F4/649 , C08F4/651
CPC分类号： C08F110/06 , C08F2/34 , C08F4/6492 , C08F4/651 , C08F10/06 , C08F110/02 , C08F2500/12 , C08F2500/15 , C08F2500/18 , C08F4/6543
摘要： A Prepolymerized catalyst component for the polymerization of olefins comprising a solid catalyst component which comprises Mg, Ti, and chlorine atoms and an electron donor (ID) said prepolymerized catalyst component being characterized by the fact that: the electron donor (ID) is constituted by at least 80% mol of 1,3 diethers with respect to the total molar amount of electron donor compounds; the prepolymerized catalyst has a porosity due to pores with diameters up to 1 μm of less than 0.2 cm3/g; it contains an amount of ethylene prepolymer of less than 45% with respect to the total weight of prepolymerized catalyst.
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36.发明申请公开(公告)号：US20180215907A1
公开(公告)日：2018-08-02
申请号：US15880326
申请日：2018-01-25
发明人： RYAN D. BREESE , STEPHEN M. IMFELD
CPC分类号： C08L23/06 , C08F110/02 , C08F255/023 , C08J3/24 , C08J2323/06 , C08K5/14 , C08L23/26 , C08L23/30 , C08L2203/16 , C08L2203/202 , C08L2205/025 , C08L2207/062 , C08L2314/02 , C08L23/04
摘要： The present disclosure provides a peroxide-modified polyethylene and related compositions as well as films, sheets, and multilayer structures made therefrom. A film composition is made from or containing a peroxide-modified polyethylene composition made from or containing a peroxide-modified polyethylene made from or containing the reaction products of a polyethylene composition made from or containing a first Ziegler-Natta-catalyzed polyethylene and a first amount of an organic peroxide to the second reactor.
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公开(公告)号：US10017592B2
公开(公告)日：2018-07-10
申请号：US15397805
申请日：2017-01-04
发明人： Qing Yang , Jeff F. Greco , Max P. McDaniel , Youlu Yu , Gary L. Glass , Tony R. Crain
IPC分类号： C08F4/653 , C08F4/6592 , C08F210/16 , C08F4/659
CPC分类号： C08F210/16 , C08F4/65904 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/02 , C08F110/02 , C08F210/08 , C08F210/14 , C08L23/0815 , C08F4/025 , C08F2500/09 , C08F2500/12 , C08F2500/08 , C08F2500/03 , C08F2500/04
摘要： Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm3, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group, and a single atom bridged metallocene compound with a fluorenyl group.
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公开(公告)号：US10011667B2
公开(公告)日：2018-07-03
申请号：US15483075
申请日：2017-04-10
IPC分类号： C08F2/00 , C08F110/06 , C08F110/02 , C08F210/02 , C08F210/06 , C08F2/34 , C08F10/02 , C08F10/06
CPC分类号： C08F110/06 , C08F2/34 , C08F10/02 , C08F10/06 , C08F110/02 , C08F210/02 , C08F210/06 , C08F2/38 , C08F4/6565 , C08F4/6492 , C08F2/001 , C08F2/002
摘要： A method for producing a polyolefin is provided. The method includes a step of feeding a polyolefin powder having a catalytic activity into a gas phase polymerization vessel in which there is a polyolefin powder and through which a gas comprising an olefin is being circulated, thereby commencing polymerization of an olefin. The following formula (1) is satisfied: 0.5
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公开(公告)号：US20180171044A1
公开(公告)日：2018-06-21
申请号：US15579882
申请日：2016-06-14
发明人： Christoph Wolf , Andre-Armand Finette , Andrei Gonioukh , Dieter Littmann , Thomas Herrmann , Georg Groos
IPC分类号： C08F110/02 , B01J19/24
CPC分类号： C08F110/02 , B01J19/2415 , B01J19/2465 , B01J2219/00081 , B01J2219/00092 , B01J2219/24 , C08F2/04 , Y02P20/582
摘要： The present disclosure relates to a plant for performing polymerization, such as the polymerization of ethylene, having a recycle connection with two or more cooling channels arranged in parallel, a process for polymerization and downstream processes, and a plant for polymerization, comprising the following plant components in fluid communication: a) A reactor with an inlet side and an outlet side; b) A recycle connection positioned in fluid communication between the outlet side of the reactor and the inlet side of the reactor; wherein the recycle connection comprises two or more cooling channels arranged in parallel.
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40.发明授权公开(公告)号：US10000595B1
公开(公告)日：2018-06-19
申请号：US15481502
申请日：2017-04-07
发明人： Carlos A. Cruz , Jared L. Barr
IPC分类号： C08F4/642 , C08F110/02 , C08F210/16 , C07F7/28 , C07F9/535
CPC分类号： C08F210/16 , C07F7/28 , C07F9/5355 , C07F17/00 , C08F4/642 , C08F4/65908 , C08F4/65912 , C08F110/02 , C08F2410/03 , C08F210/14 , C08F2500/12 , C08F2500/04 , C08F2500/02
摘要： Disclosed herein are methods for synthesizing low valence, bimetallic titanium compounds from half-metallocene titanium compounds and alkylaluminum compounds. The bimetallic titanium compounds can be used as components in catalyst systems for the polymerization of olefins.
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