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公开(公告)号：EP3394110A1
公开(公告)日：2018-10-31
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
Abstract: b) an oligomeric or polymeric organic compound having one or more terminal hydroxyl groups and a viscosity at 40° C. of at least about 20 mm2/sec (DIN 51562).
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公开(公告)号：EP2225022A1
公开(公告)日：2010-09-08
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
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.
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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
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公开(公告)号：EP2897987A1
公开(公告)日：2015-07-29
申请号：EP13760006.0
申请日：2013-09-05
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： BALESTRA, Enrico , CAPUTO, Tiziana , DORINI, Maurizio , MAZZUCCO, Antonio , SOFFRITTI, Silvia
CPC classification number: C08F10/06 , B01J8/24 , B01J8/26 , B01J8/388 , B01J19/24 , B01J2208/00274 , B01J2208/00283 , B01J2208/00734 , B01J2219/00164 , B01J2219/24 , C08F10/00 , C08F210/06 , C08F2/34 , C08F2/005 , C08F2/001 , C08F210/16 , C08F2500/12 , C08F2/01
Abstract: A process and apparatus for producing olefin polymers are disclosed, comprising: a. polymerizing one or more olefins in the gas phase, in the presence of an olefin polymerization catalyst, whereby growing polymer particles flow along a cylindrically- shaped downward path in densified form under the action of gravity so as to form a densified bed of downward-flowing polymer particles b. allowing said polymer particles to flow through a restriction of the densified bed, such restriction being positioned in a restriction zone extending from the bed upward to a distance of 15% of the total height of the densified bed; and c. metering an antistatic agent through a feed line connected to the densified bed at a feed point being located in a feed zone extending from the top of the restriction upward, to a distance five times the diameter of the section of the densified bed above the restriction.
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公开(公告)号：EP2585501A1
公开(公告)日：2013-05-01
申请号：EP11726108.1
申请日：2011-06-09
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： BALESTRA, Enrico , CAPUTO, Tiziana , MAZZUCCO, Antonio , RINALDI, Riccardo , SOFFRITTI, Silvia
IPC: C08F210/06 , C08F2/34 , C08F2/00
CPC classification number: C08F2/01 , C08F210/06 , C08F2/001 , C08F2/34 , C08F210/14 , C08F210/16
Abstract: A process for the gas-phase copolymerization of: (a)propylene, (b) at least one C
4 -C
8 α-olefin, and (c) optionally ethylene, the process being carried out in a reactor having 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, leave said downcomer and are reintroduced into said riser, thus establishing a circulation of polymer between the riser and the downcomer, the gas mixture present in the riser being at least partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid barrier having a composition different from the gaseous mixture present in the riser and comprising at least one C
4 -C
8 α-olefin in a total amount of from 0.1% to 35% by mol.-
Patent Agency Ranking
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
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.
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公开(公告)号：EP3684824A1
公开(公告)日：2020-07-29
申请号：EP18765906.5
申请日：2018-09-13
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： MAZZUCCO, Antonio , BALESTRA, Enrico , PANTALEONI, Roberto , TARTARI, Davide , RINALDI, Riccardo
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公开(公告)号：EP3601376A1
公开(公告)日：2020-02-05
申请号：EP18709007.1
申请日：2018-03-07
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： MEI, Gabriele , MAZZUCCO, Antonio , CAPUTO, Tiziana , BALESTRA, Enrico , TARTARI, Davide , MASSARI, Paola
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公开(公告)号：EP2585501B1
公开(公告)日：2016-09-28
申请号：EP11726108.1
申请日：2011-06-09
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： BALESTRA, Enrico , CAPUTO, Tiziana , MAZZUCCO, Antonio , RINALDI, Riccardo , SOFFRITTI, Silvia
IPC: C08F210/06 , C08F2/34 , C08F2/00
CPC classification number: C08F2/01 , C08F210/06 , C08F2/001 , C08F2/34 , C08F210/14 , C08F210/16
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公开(公告)号：EP3601383A1
公开(公告)日：2020-02-05
申请号：EP18711593.6
申请日：2018-03-23
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： MEI, Gabriele , MAZZUCCO, Antonio , CAPUTO, Tiziana , BALESTRA, Enrico , TARTARI, Davide , MOSCARDI, Gilberto
IPC: C08F210/06 , C08L23/10
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