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1.发明申请
公开(公告)号：WO2022101337A1
公开(公告)日：2022-05-19
申请号：PCT/EP2021/081372
申请日：2021-11-11
发明人： MALUCELLI, Decio , CONSALVI, Marco
摘要： A process for preparing a polyethylene composition comprising bimodal or multimodal polyethylene in an extruder device comprising mixing a bimodal or multimodal polyethylene having a density from 0.940 g/cm3 to 0.968 g/cm3 in form of a polyethylene powder and one or more additives in a mixing device at a temperature from 10°C to 100°C without melting the polyethylene powder; melting and homogenizing the mixture within the extruder device to form a molten polyethylene composition; and pelletizing the molten polyethylene composition, wherein a liquid comprising an organic peroxide is added in an amount from 20 ppm to 200 ppm of organic peroxide with respect to the polyethylene powder, and the liquid is added to the polyethylene powder at a position where mixing occurs and where the polyethylene powder has a temperature of from 10°C to 100°C.
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2.发明申请
公开(公告)号：WO2020239887A1
公开(公告)日：2020-12-03
申请号：PCT/EP2020/064794
申请日：2020-05-28
IPC分类号： C08F2/18 , C08F10/02 , C08F110/02 , C08F210/16
摘要： A process for preparing an ethylene polymer in a suspension polymerization comprising separating the formed suspension of ethylene polymer particles in a solid-liquid separator into wet ethylene polymer particles and mother liquor, drying the wet ethylene polymer particles by a gas stream and forming a gas stream carrying a hydrocarbon load, and thereafter separating the hydrocarbon load from the gas stream and thereby forming a liquid hydrocarbon recover stream, transferring a part of the mother liquor into a work-up section comprising an evaporator for producing a wax-depleted portion of the mother liquor and comprising a diluent distillation unit, which produces isolated diluent from the wax-depleted portion of the mother liquor, wherein at least a part of the hydrocarbon recover stream is transferred to the diluent distillation unit without passing the evaporator for producing the wax-depleted portion of the mother liquor.
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公开(公告)号：WO2020169423A1
公开(公告)日：2020-08-27
申请号：PCT/EP2020/053521
申请日：2020-02-12
IPC分类号： B29C64/118 , B29C48/00 , B29C48/05 , B29C48/25 , B33Y70/00 , B29K23/00 , B29K105/00
摘要： An extrusion additive manufacturing process comprising the extrusion of a polyethylene composition having a melt flow index MIE of at least 0.1 g/1O min., said composition comprising: A) from 1% to 40% by weight of a polyethylene component having a weight average molar mass M w , as measured by GPC (Gel Permeation Chromatography), equal to or higher than 1,000,000 g/mol; B) from 1% to 95 % by weight of a polyethylene component having a M w value from 50,000 to 500,000 g/mol; C) from 1% to 59 % by weight of a polyethylene component having a M w value equal to or lower than 5,000 g/mol.
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公开(公告)号：WO2019038312A1
公开(公告)日：2019-02-28
申请号：PCT/EP2018/072607
申请日：2018-08-22
摘要： Method for aligning a cutter plate in a pelletizer for polymer pellets using a remote alignment adjustment device, the pelletizer (1) comprising a die plate (11) having a plurality of apertures for extrudate strands, a cutter plate (10) with a plurality of blades and a drive shaft (4) that is fixedly connected to the cutter plate, said die plate comprising a first side (11') that is facing the cutter plate and an opposing second side (11") facing away from the cutter plate, the remote alignment adjustment device comprising a mechanical distance measurement probe (20), a camera (13) for taking photos and/or videos and a mounting device (22) that is attached to the drive shaft (4), wherein the remote alignment adjustment device is connected to a data processing device. Further disclosed is a process for preparing polyethylene pellets in a pelletizer using said method for aligning a cutter plate.
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公开(公告)号：WO2018210780A1
公开(公告)日：2018-11-22
申请号：PCT/EP2018/062433
申请日：2018-05-15
摘要： Fluidized-bed reactor for the gas-phase polymerization of olefins comprising a gas distribution grid installed in a lower part of the fluidized-bed reactor and a gas recycle line, which is equipped with a compressor and a heat exchanger and which is connected at the upper end with the top of the fluidized-bed reactor, wherein the gas recycle line splits at the lower end in at least two substantially horizontal branches which are connected tangentially with the fluidized-bed reactor below the gas distribution grid and a process for preparing an olefin polymer carried out in the fluidized-bed reactor.
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公开(公告)号：WO2018127472A1
公开(公告)日：2018-07-12
申请号：PCT/EP2018/050016
申请日：2018-01-02
摘要： A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors comprising polymerizing monomers in a polymerization reactor wherein the polymerization reactors comprise a reactor outlet arranged in the reactor bottom for feeding a reactor slurry to a subsequent polymerization reactor and for emptying said polymerization reactor.
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7.发明申请
公开(公告)号：WO2017194491A1
公开(公告)日：2017-11-16
申请号：PCT/EP2017/060972
申请日：2017-05-09
摘要： A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein the process comprises monitoring the surroundings of the production line with respect to an occurrence of a leakage of monomers or of reaction mixture by an IR point detector arrangement of at least three groups of IR point detectors which are capable of detecting hydrocarbons and the groups of IR point detectors are operating according to a voting logic and starting automatically an emergency pressure release program when a group of IR point detectors of the IR point detector arrangement detects the presence of hydrocarbons.
摘要翻译： 在包含连续操作的聚合反应器的生产线中，在110MPa至500MPa的压力下聚合或共聚烯属不饱和单体的方法，其中所述方法包括监测生产的环境 关于由至少三组能够检测碳氢化合物的IR点检测器的IR点检测器装置发生单体或反应混合物的泄漏，并且IR点检测器组根据投票逻辑进行操作 并且当IR点检测器装置的一组IR点检测器检测到存在碳氢化合物时，自动启动紧急压力释放程序。
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公开(公告)号：WO2017089125A1
公开(公告)日：2017-06-01
申请号：PCT/EP2016/077019
申请日：2016-11-08
CPC分类号： C08L23/0815 , B29C47/0021 , B29C47/0026 , B29C47/02 , B29C47/14 , B29C47/20 , B29C47/92 , B29C2947/92647 , C08F2/001 , C08J5/18 , C08J2323/08 , C08L2205/02 , C08L2205/03 , C08L2308/00 , C08L2314/02 , C08L23/16
摘要： A polyolefin composition particularly suited for producing geomembranes, comprising: A) from 55 to 75 wt% of a polyethylene having a density of 0.920-0.940 g/cm 3 and a fraction soluble in xylene (XS A ) of less than 10%; B) from 25 to 45 wt. % of a copolymer of ethylene with one or more comonomers selected from α-olefins having formula HC 2 =CHR 1 , where R 1 is an alkyl radical, linear or branched, having from 1 to 8 carbon atoms, comprising from 50 to 70 wt.% of ethylene and having a fraction soluble in xylene (XS B ) of at least 50 wt.%; said composition having a flexural modulus of less than 260 MPa as measured according to ISO 178.
摘要翻译： 特别适用于生产土工膜的聚烯烃组合物，其包含：A）55-75重量％的密度为0.920-0.940g / cm 3的聚乙烯和 可溶于二甲苯（XS）的部分小于10％; B）25至45wt。 ％的乙烯与一种或多种共聚单体的共聚物，所述共聚单体选自具有式HC2 = CHR1 1的α-烯烃，其中R 1是 具有1至8个碳原子的直链或支链烷基，包含50至70重量％的乙烯并且具有至少50重量％的可溶于二甲苯（XSB）的部分， ; 所述组合物根据ISO 178测量的挠曲模量小于260MPa。
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公开(公告)号：WO2017085097A1
公开(公告)日：2017-05-26
申请号：PCT/EP2016/077813
申请日：2016-11-16
摘要： A process for polymerizing ethylene to obtain an ethylene-based polymer in a plant, wherein the plant includes a reactor in fluid communication with a recycle connection, wherein the process comprises a polymerization phase, a partial shutdown phase, and the steps of reducing the pressure in the reactor for entering from the polymerization phase into the partial shutdown phase; and increasing the pressure in the reactor for exiting from the partial shutdown phase and re-entering the polymerization phase.
摘要翻译： 一种在设备中聚合乙烯以获得基于乙烯的聚合物的方法，其中所述设备包括与再循环连接流体连通的反应器，其中所述方法包括聚合阶段，部分关闭阶段 以及降低反应器中用于从聚合阶段进入部分停堆阶段的压力的步骤; 并增加反应器中的压力以退出部分关闭阶段并重新进入聚合阶段。
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10.发明申请POLYETHYLENE COMPOSITION HAVING HIGH MECHANICAL PROPERTIES AND PROCESSABILITY 审中-公开具有高机械性能和可加工性的聚乙烯组合物
公开(公告)号：WO2016206958A1
公开(公告)日：2016-12-29
申请号：PCT/EP2016/062747
申请日：2016-06-06
发明人： VITTORIAS, Iakovos , MARCZINKE, Bernd, Lothar , MEIER, Gerhardus , SCHUELLER, Ulf , MAUS, Andreas , MAVRIDIS, Harilaos
CPC分类号： C08L23/06 , B32B27/08 , B32B27/32 , B32B27/327 , B32B2307/558 , B32B2307/72 , B32B2307/732 , B32B2597/00 , C08L2203/18 , C08L2205/025 , C08L2308/00 , C08L2314/02 , F16L9/12 , C08L23/0815 , C08F210/16 , C08F4/6545 , C08F4/6492 , C08F4/651 , C08F210/14 , C08F2500/12 , C08F2500/09 , C08F2500/17 , C08F2500/04 , C08F2/001
摘要： A polyethylene composition particularly suited for producing pipes and films, having the following features: 1) density from 0.945 to 0.955 g/cm 3 , determined according to ISO 1183 at 23°C; 2) ratio MIF/MIP from 23 to 40; 3) MIF from 8.5 to 18 g/10 min.; 4) HMWcopo index from 3.5 to 20; 5) long-chain branching index, LCBI, equal to or greater than 0.45.
摘要翻译： 一种特别适用于生产管材和薄膜的聚乙烯组合物，具有以下特征：1）在23℃下根据ISO 1183测定的密度为0.945-0.955g / cm3; 2）比例MIF / MIP从23到40; 3）MIF为8.5〜18g / 10min。 4）HMWcopo指数从3.5到20; 5）长链支化指数，LCBI等于或大于0.45。
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