EP 2142576 A1 20100113 - POLYETHYLENE, PROCESS AND CATALYST COMPOSITION FOR THE PREPARATION THEREOF
Title (en)
POLYETHYLENE, PROCESS AND CATALYST COMPOSITION FOR THE PREPARATION THEREOF
Title (de)
POLYETHYLEN, VERFAHREN UND KATALYSATORZUSAMMENSETZUNG ZU SEINER HERSTELLUNG
Title (fr)
POLYÉTHYLÈNE, PROCÉDÉ ET COMPOSITION CATALYTIQUE POUR SA PRÉPARATION
Publication
Application
Priority
- EP 2008054654 W 20080417
- EP 07008743 A 20070430
- US 92758207 P 20070504
- EP 08749587 A 20080417
Abstract (en)
[origin: WO2008132059A1] A multimodal polyethylene having an inverse comonomer distribution, as well as a process carried out in a single reactor in the presence of a mixed catalyst composition comprising two different polymerization catalysts, are described. The multimodal polyethylene has a density of 0 915 - 0 970 g/cm<SUP>3</SUP>, a weight average molar mass Mw of 100 000 - 900 000 g/mol, and a polydispersity M<SUB>w</SUB>/M<SUB>n</SUB> of at least 15. The at least one homopolymer has a density of 0 950 - 0 975 g/cm<SUP>3</SUP>, a weight average molar mass M<SUB>w</SUB> of 10 000 - 90 000 g/mol and a polydispersity M<SUB>w</SUB>/M<SUB>n</SUB> higher than 3 and lower than 10, and the at least one copolymer has a polydispersity M<SUB>w</SUB>/M<SUB>n</SUB> between 8 and 80.
IPC 8 full level
C08F 10/02 (2006.01); C08F 4/70 (2006.01)
CPC (source: EP)
C08F 10/00 (2013.01); C08F 10/02 (2013.01); C08F 210/16 (2013.01); C08F 110/02 (2013.01); C08F 2410/04 (2013.01)
Citation (search report)
See references of WO 2008132059A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008132059 A1 20081106; CN 102015784 A 20110413; EP 2142576 A1 20100113; TW 200904831 A 20090201
DOCDB simple family (application)
EP 2008054654 W 20080417; CN 200880023005 A 20080417; EP 08749587 A 20080417; TW 97111762 A 20080331