EP 1083183 A9 20010502 - Process for producing polyolefins
Title (en)
Process for producing polyolefins
Title (de)
Verfahren zur Herstellung von Polyolefinen
Title (fr)
Procédé pour la préparation de polyoléfines
Publication
Application
Priority
EP 99117850 A 19990910
Abstract (en)
[origin: EP1083183A1] A process for producing polyolefins having a bimodal molecular weight distribution, the process comprising producing a first polyolefin fraction in the presence of a catalyst in a first loop reactor, and producing a second polyolefin fraction in the presence of the catalyst in a second loop reactor which is serially connected to and downstream of the first loop reactor, the first and second polyolefin fractions being blended in the second loop reactor to form a polyolefin having a bimodal molecular weight distribution, at least the first loop reactor containing a diluent under supercritical conditions which is circulated around the loop of the reactor, and wherein at least the first loop reactor is provided with a fluff concentrating device communicating with the loop and in which polyolefin fluff of the first fraction is concentrated in the supercritical diluent, and polyolefin fluff of the first polyolefin fraction is transferred together with an amount of supercritical diluent from the fluff concentrating device of the first loop reactor into the second loop reactor.
IPC 1-7
IPC 8 full level
B01J 8/00 (2006.01); B01J 19/24 (2006.01); C08F 2/00 (2006.01); C08F 2/14 (2006.01); C08F 2/34 (2006.01); C08F 10/00 (2006.01); C08F 10/02 (2006.01); C08F 110/02 (2006.01); C08F 210/16 (2006.01)
CPC (source: EP US)
B01J 8/0005 (2013.01 - EP US); B01J 8/005 (2013.01 - EP US); B01J 8/0055 (2013.01 - EP US); B01J 19/2435 (2013.01 - EP US); C08F 10/02 (2013.01 - EP US); C08F 110/02 (2013.01 - EP US); C08F 210/16 (2013.01 - EP US); Y02P 20/54 (2015.11 - EP US); Y02P 20/582 (2015.11 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1083183 A1 20010314; EP 1083183 A9 20010502; AT E266046 T1 20040515; AU 7289400 A 20010417; CN 101781376 A 20100721; CN 101781376 B 20130807; CN 1378561 A 20021106; DE 60010485 D1 20040609; DE 60010485 T2 20050512; EP 1214355 A1 20020619; EP 1214355 B1 20040506; ES 2219391 T3 20041201; JP 2003509543 A 20030311; JP 4683805 B2 20110518; US 6355741 B1 20020312; WO 0119872 A1 20010322
DOCDB simple family (application)
EP 99117850 A 19990910; AT 00960691 T 20000908; AU 7289400 A 20000908; CN 00814160 A 20000908; CN 200910265648 A 20000908; DE 60010485 T 20000908; EP 0009321 W 20000908; EP 00960691 A 20000908; ES 00960691 T 20000908; JP 2001523649 A 20000908; US 65806800 A 20000911