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公开(公告)号：EP3387066B1
公开(公告)日：2019-11-06
申请号：EP16805337.9
申请日：2016-11-22
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： COVEZZI, Massimo , MASSARI, Paola , CAVALIERI, Claudio , MARZOLLA, Roberta
IPC: C08L23/12 , C08F110/06
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公开(公告)号：EP3331927A1
公开(公告)日：2018-06-13
申请号：EP16750729.2
申请日：2016-08-03
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： MORINI, Giampiero , COVEZZI, Massimo , DALL'OCCO, Tiziano , LIGUORI, Dario , PIEMONTESI, Fabrizio , VITALE, Gianni
IPC: C08F2/34 , C08F110/06 , C08F4/651 , C08F4/649
CPC classification number: C08F110/06 , C08F2/34 , C08F4/6492 , C08F4/651 , C08F10/06 , C08F110/02 , C08F2500/12 , C08F2500/15 , C08F2500/18 , C08F4/6543
Abstract: A gas-phase process for the homopolymerization or copolymerization of propylene with other olefins, including carrying out the polymerization in the presence of a catalyst system made from or containing: (a) a solid catalyst component made from or containing Mg, Ti, halogen, an electron donor selected from 1.3-diethers and an olefin polymer in a specific amount; (b) an aluminum alkyl compound and (c) an external electron donor (ED) compound, wherein components (b) and (c) being employed in amounts such that the Al/(ED) molar ratio ranges from about 2 to about 200.
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公开(公告)号：EP1515998B1
公开(公告)日：2011-05-11
申请号：EP03760626.6
申请日：2003-06-17
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： BIGIAVI, Daniele , MEI, Gabriele , ARICH DE FINETTI, Nicolò , PENZO, Giuseppe , VITALE, Gianni , COVEZZI, Massimo
CPC classification number: C08F110/08 , Y10S526/903 , C08F2/001 , C08F2/06 , C08F2/42 , C08F2500/12 , C08F2/01 , C08F2/00
Abstract: A liquid-phase process for polymerizing α-olefins of the formula CH2=CHR, where R is H or an alkyl radical C1-C6, to produce a polymer that is soluble in the reaction medium, comprising the steps of: a) continuously polymerizing in liquid phase the α- olefin in the presence of a catalyst system based on a transition metal compound; b) continuously withdrawing from step a) a solution of polymer in the liquid reaction medium; c) mixing in one or more mixing stages said solution of polymer in the reaction medium with an organic deactivator having: at least a hydroxy group, a boiling point higher than 150°C, and a ratio between the molecular weight (MW) and the number of hydroxy groups (OH) comprised between 20 and 100.
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公开(公告)号：EP1549687B1
公开(公告)日：2011-04-20
申请号：EP03753465.8
申请日：2003-09-25
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： COVEZZI, Massimo , MEIER, Gerhardus , MEI, Gabriele
CPC classification number: B01J8/388 , B01J8/1827 , B01J8/1872 , B01J2208/00176 , B01J2208/00212 , B01J2208/00256 , B01J2208/00274 , C08F10/00 , C08F110/02 , C08F110/06 , C08F210/06 , C08F210/16 , C08F210/18 , Y10S526/901 , Y10S526/918 , C08F2/34 , C08F2/01 , C08F2/001 , C08F2500/07 , C08F2500/15 , C08F210/08 , C08F2500/08 , C08F236/00 , C08F2500/21
Abstract: Process for the gas-phase catalytic polymerization of olefins carried out in a plurality of interconnected polymerization zones, the process comprising feeding one or more monomers to said polymerization zones in the presence of a catalyst under reaction conditions and collecting the polymer product from said polymerization zones, in which process the polymer particles grow within a first polymerization zone where a fluidized bed is formed, at least a part of said polymer particles leave said first polymerization zone to enter a second polymerization zone through which they flow downward, leave said second polymerization zone and enter a third polymerization zone through which they flow upward under fast fluidization or transport conditions, leave said third polymerization zone and are reintroduced into the first polymerization zone, thus establishing a circulation of polymer between the different polymerization zones.
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Patent Agency Ranking
公开(公告)号：EP1799725A1
公开(公告)日：2007-06-27
申请号：EP05781760.3
申请日：2005-09-19
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： MEI, Gabriele , COVEZZI, Massimo , BERTOLINI, Stefano
CPC classification number: C08F10/00 , C08F110/06 , C08F210/06 , Y10S526/904 , Y10S526/919 , C08F2/01 , C08F4/651 , C08F4/6492 , C08F2/001 , C08F2/34 , C08F2500/24 , C08F210/16
Abstract: Process for the gas-phase polymerization of one or more alpha-olefins in the presence of a catalyst system, the process comprising: contacting in a continuous way one or more of said alpha-olefins with said catalyst system in a prepolymerization reactor, wherein the reaction is carried out in a liquid medium at a temperature ranging from 23° to 500C; feeding in continuous the prepolymer obtained in step a) into a gas-phase reactor having interconnected polymerization zones, where the growing polymer particles flow upward through a first polymerization zone (riser) under fast fluidization or transport conditions, leave said riser and enter a second polymerization zone (downcomer) through which they flow downward under the action of gravity, leave said downcomer and are reintroduced into said riser; wherein the prepolymer obtained from step a) is continuously fed at a section of said riser characterized by an upwardly gas velocity higher than 3.0 m/s.
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公开(公告)号：EP1656398A1
公开(公告)日：2006-05-17
申请号：EP04741145.9
申请日：2004-07-19
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： MEIER, Gerben , COVEZZI, Massimo , BAITA, Pietro , MEI, Gabriele
CPC classification number: B01J8/0055 , B01J8/1854 , B01J8/24 , B01J19/2435 , B01J2208/00619 , B01J2219/00006 , B01J2219/0004 , B01J2219/00184 , C08F210/16 , C08L23/06 , C08L23/0815 , C08L2205/02 , Y10S526/905 , C08F2/34 , C08F2/001 , C08L2666/06 , C08F210/14 , C08F2500/04 , C08F2500/07 , C08F2500/12 , C08F2500/17 , C08F210/08
Abstract: Process for preparing a broad molecular weight polyethylene by polymerizing ethylene in the presence of a polymerization catalyst, the process comprising the following steps, in any mutual order: a) polymerizing ethylene, optionally together with one or more a-olefinic comonomers having from 3 to 12 carbon atoms, in a gas-phase reactor in the presence of hydrogen, b) copolymerizing ethylene with one or more a-olefinic comonomers having from 3 to 12 carbon atoms in another gas-phase reactor in the presence of an amount of hydrogen less than step a), where in at least one of said gas-phase reactors the growing polymer particles flow upward through a first polymerization zone under fast fluidization or transport conditions, leave said first polymerization zone and enter a second polymerization zone through which they flow downward under the action of gravity.
Abstract translation: 通过在聚合催化剂存在下聚合乙烯制备宽分子量聚乙烯的方法，所述方法包括以下步骤，以任何相互顺序：a）使乙烯任选地与一种或多种具有3至3个碳原子的α-烯烃共聚单体 在气相反应器中在氢气存在下进行反应，b）使乙烯与一种或多种具有3-12个碳原子的α-烯烃共聚单体在另一气相反应器中在少量氢气存在下共聚 其中在至少一个所述气相反应器中，生长的聚合物颗粒在快速流化或运输条件下向上流过第一聚合区，离开所述第一聚合区并进入第二聚合区，通过它们向下流动 在重力的作用下。
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公开(公告)号：EP2943515A1
公开(公告)日：2015-11-18
申请号：EP13811895.5
申请日：2013-12-18
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： COVEZZI, Massimo , MEI, Gabriele , Baita, Pietro , Marturano, Lorella
CPC classification number: C08F10/02 , C08F2/005 , C08F2410/02 , C08F110/02 , C08F2500/12 , C08F2500/18 , C08F2500/24
Abstract: A process for the preparation of ethylene polymers comprising polymerizing ethylene, optionally with one or more ±-olefin comonomers, in the presence of: (i) a solid catalyst component comprising titanium, magnesium, halogen and optionally an internal electron-donor compound, (ii) an aluminum alkyl compound, and (iii) an antistatic compound selected among the hydroxyesters with at least two free hydroxyl groups, wherein the weight ratio of aluminum alkyl compound to solid catalyst component is higher than 0.80 and the weight ratio of antistatic compound to aluminum alkyl compound is higher than 0.10.
Abstract translation: 一种制备乙烯聚合物的方法，包括在下列物质存在下聚合乙烯，任选地与一种或多种α-烯烃共聚单体共聚：（i）包含钛，镁，卤素和任选的内部电子给体化合物的固体催化剂组分，（ ii）烷基铝化合物，和（iii）选自具有至少两个游离羟基的羟基酯的抗静电化合物，其中烷基铝化合物与固体催化剂组分的重量比高于0.80，并且抗静电化合物与 烷基铝化合物高于0.10。
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公开(公告)号：EP1515993B1
公开(公告)日：2009-02-25
申请号：EP03738042.5
申请日：2003-06-17
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： BIGIAVI, Daniele , ARICH DE FINETTI, Nicolò , MEI, Gabriele , PENZO, Giuseppe , COVEZZI, Massimo , BAITA, Pietro , TONTI, Maria, Silvia
CPC classification number: C08F6/003 , B01J2219/00006 , B01J2219/0004 , Y02P20/544 , C08L23/20
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29.发明授权
公开(公告)号：EP1353962B1
公开(公告)日：2008-05-21
申请号：EP01270558.8
申请日：2001-12-10
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： COVEZZI, Massimo , FAIT, Anna , DI BENEDETTO, Almerinda
CPC classification number: C08F10/00 , C08F110/06 , C08F4/6543 , C08F2500/15 , C08F2500/18
Abstract: A process is provided for the preparation of a solid catalyst component for the polymerisation of olefins, comprising continuously feeding a liquid containing a titanium compound having at least one titanium-halogen bond into a vessel containing a solid comprising a magnesium halide and continuously discharging liquid from the vessel, whereby the concentration of the solid is maintained within the range of between 80 and 300 g/l, and the product between the average residence time of the liquid in the vessel and the concentration of the solid is maintained below 10,000 min*g/l. An advantage of the process is the reduced time and reactor volume necessary to prepare the catalysts, which show good activity and stereospecificity.
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