公开(公告)号：EP1827673A1

公开(公告)日：2007-09-05

申请号：EP05816222.3

申请日：2005-12-09

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MEI, Gabriele ,  PATER, Joachim ,  BERTOLINI, Stefano

IPC: B01J8/18

CPC classification number: B01J19/2435 ,  B01J8/1863 ,  B01J2219/00006 ,  B01J2219/0004 ,  C08F10/06 ,  C08F210/06 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/17

Abstract: A process for preparing heterophasic propylene copolymers by polymerizing propylene in the presence of a polymerization catalyst and hydrogen as a molecular weight regulator, the process comprising the following steps: a) polymerizing in gas- or liquid-phase propylene to prepare a crystalline polymer fraction; b) copolymerizing ethylene with propylene and/or 1 -butene, and optionally one or more alpha-olefin comonomers Cs-C12, in a gas-phase reactor having interconnected polymerization zones, wherein 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.

公开(公告)号：EP1656398B1

公开(公告)日：2006-12-06

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

IPC: C08F10/02 ,  C08L23/04 ,  C08F2/00 ,  C08F2/34 ,  B01J8/18

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.

公开(公告)号：EP3570969A1

公开(公告)日：2019-11-27

申请号：EP17818531.0

申请日：2017-12-15

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： BALESTRA, Enrico ,  CAPUTO, Tiziana ,  COVEZZI, Massimo ,  DORINI, Maurizio ,  MAZZUCCO, Antonio ,  MEI, Gabriele ,  RINALDI, Riccardo

IPC: B01J8/18 ,  B01J8/24 ,  C08F2/00 ,  C08F2/01 ,  C08F10/00

公开(公告)号：EP3038977B1

公开(公告)日：2018-01-17

申请号：EP14747389.6

申请日：2014-08-05

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： COVEZZI, Massimo ,  MEI, Gabriele ,  DI DIEGO, Maria ,  GESSI, Piero ,  BAITA, Pietro ,  PICA, Roberta

IPC: C01B33/14 ,  C01B33/157 ,  C08F2/00 ,  C09C1/28 ,  C09C1/30

CPC classification number: C09J151/06 ,  B32B7/12 ,  B32B15/085 ,  B32B27/06 ,  B32B2307/718 ,  C08F10/00 ,  C08F110/02 ,  C08F2410/02 ,  C08L23/06 ,  C08L23/20 ,  C08L51/06 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2207/062 ,  C09J5/02 ,  C09J123/06 ,  C09J123/20 ,  C09J2205/306 ,  C09J2400/166 ,  C09J2423/00 ,  C09J2423/04 ,  C09J2451/00 ,  C09J2463/008 ,  C08F2/005 ,  C08F2/007 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/025 ,  C08F110/06 ,  C08F4/6492

Abstract: Feeding a supported antistatic compound that does not comprise a transition-metal-based catalyst component to an olefin polymerization reactor allows avoiding the formation of polymer agglomerates in the reactor while at the same time minimizing negative effects on catalyst yield.

公开(公告)号：EP2943515B1

公开(公告)日：2017-02-08

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

IPC: C08F10/02 ,  C08F2/00 ,  C08F4/64

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: 一种用于制备乙烯聚合物的方法，包括在以下存在下聚合乙烯，任选与一种或多种α-烯烃共聚单体：（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）铝烷基化合物，和（iii）选自具有至少两个游离羟基的羟基酯中​​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，抗静电化合物与 铝烷基化合物高于0.10。

公开(公告)号：EP1358252B1

公开(公告)日：2012-04-11

申请号：EP01993143.5

申请日：2001-12-13

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： PELLICONI, Anteo ,  LONARDO, Angelo ,  MEI, Gabriele

IPC: C08J5/18 ,  C08L23/14

CPC classification number: C08J5/18 ,  C08J2323/14 ,  Y10S428/91 ,  Y10T428/31913 ,  Y10T428/31938

Abstract: Bioriented polypropylene films (BOPP) wherein at least one layer comprises a propylene polymer containing at least 0.8% by weight of ethylene and optionally one or more C4-C10α-olefins, or a propylene polymer composition containing at least 0.8% by weight of one or more comonomers selected from ethylene and more C4-C10α-olefins, and having the following features: 1) a melting temperature of 155°C or higher; 2) a content of fraction soluble in xylene at room temperature lower than 3% by weight and a value of the ratio of the polymer fraction collected at the temperature range from 25°C to 95°C (by TREF) to the said xylene soluble fraction higher than 8.

公开(公告)号：EP2225022B1

公开(公告)日：2011-06-08

申请号：EP08863810.1

申请日：2008-12-17

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia ,  BALESTRA, Enrico ,  PENZO, Giuseppe ,  MEI, Gabriele

IPC: B01J19/24 ,  C08F10/00

CPC classification number: B01J19/2435 ,  B01J2219/00164 ,  B01J2219/00166 ,  B01J2219/00173 ,  C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  C08F2/34 ,  C08F2/001 ,  C08F2500/05 ,  C08F210/16

Abstract: A process for the gas-phase polymerization of α-olefms carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, the process being characterized in that: (a) the gas mixture present in the riser is totally or partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid stream LB having a composition different from the gaseous mixture present in the riser; (b) the ratio R between the flow rate Fp of polymer circulated between said downcomer and said riser and the flow rate LB of said liquid being adjusted in a range from 10 to 50.

公开(公告)号：EP1799725B1

公开(公告)日：2010-03-17

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

IPC: C08F10/00 ,  C08F2/34 ,  C08F2/01

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

公开(公告)号：EP1896513B1

公开(公告)日：2010-01-20

申请号：EP06763097.0

申请日：2006-05-09

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MEI, Gabriele ,  PATER, T.M. Joachim ,  MEIER, Gerben ,  BAITA, Pietro

IPC: C08F10/00 ,  C08F2/00 ,  C08F2/01 ,  C08F2/34 ,  B01J8/18 ,  B01J8/20

CPC classification number: C08F210/06 ,  B01J8/1863 ,  B01J8/388 ,  B01J19/2435 ,  B01J2208/00548 ,  B01J2208/00557 ,  B01J2219/00164 ,  B01J2219/00166 ,  C08F210/16 ,  Y10S526/901 ,  C08F2/01 ,  C08F2/34 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/05 ,  C08F210/14

公开(公告)号：EP3394110B1

公开(公告)日：2020-10-07

申请号：EP16802037.8

申请日：2016-11-28

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MAZZUCCO, Antonio ,  MEI, Gabriele ,  CAPUTO, Tiziana ,  PANTALEONI, Roberto ,  BALESTRA, Enrico ,  DI DIEGO, Maria ,  DESTRO, Mara ,  RINALDI, Riccardo

IPC: C08F2/00 ,  C08F2/38