Global Patent Index - EP 2630168 A4

EP 2630168 A4 20141029 - POLYETHYLENE AND PROCESS FOR PRODUCTION THEREOF

Title (en)

POLYETHYLENE AND PROCESS FOR PRODUCTION THEREOF

Title (de)

POLYETHYLEN UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

POLYÉTHYLÈNE ET SON PROCÉDÉ DE FABRICATION

Publication

EP 2630168 A4 20141029 (EN)

Application

EP 11855376 A 20111014

Priority

  • US 90941210 A 20101021
  • EP 10194265 A 20101209
  • US 2011056336 W 20111014
  • EP 11855376 A 20111014

Abstract (en)

[origin: WO2012096698A2] This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol%, prior to use as an activator, where the mol% trimethylaluminum is determined by 1H NMR of the solution prior to combination with any support. This invention also relates to a process for polymerizing olefins in which the amount of an unknown species present in a methylalumoxane solution is adjusted to be from 0.10 to 0.65 integration units prior to use as an activator, where the amount of the unknown species is determined by the 1H NMR spectra of the solution performed prior to combination with any support. Preferably, the methylalumoxane solution is present in a catalyst system also comprising a metallocene transition metal compound.

IPC 8 full level

C08F 210/16 (2006.01); C08F 4/659 (2006.01)

CPC (source: EP KR)

C08F 4/6592 (2013.01 - KR); C08F 10/00 (2013.01 - KR); C08F 10/02 (2013.01 - KR); C08F 210/16 (2013.01 - EP KR); C08F 4/65916 (2013.01 - EP); C08F 4/65925 (2013.01 - EP)

C-Set (source: EP)

  1. C08F 210/16 + C08F 210/14 + C08F 2500/03 + C08F 2500/11 + C08F 2500/20 + C08F 2500/26
  2. C08F 210/16 + C08F 4/65912

Citation (search report)

  • [X] WO 2009082546 A2 20090702 - EXXONMOBIL CHEM PATENTS INC [US], et al
  • [X] US 2005282980 A1 20051222 - SZUL JOHN F [US], et al
  • [X] EP 1650231 A1 20060426 - TOTAL PETROCHEMICALS RES FELUY [BE]
  • [AD] IMHOFF D W ET AL: "Characterization of methylaluminoxanes and determination of trimethylaluminium using proton NMR", ORGANOMETALLICS, ACS, WASHINGTON, DC, US, vol. 17, 11 May 1998 (1998-05-11), pages 1941 - 1945, XP002234016, ISSN: 0276-7333, DOI: 10.1021/OM980046P
  • [X] REDDY S S ET AL: "ROLE OF TRIMETHYLALUMINUM ON THE ZIRCONOCENE-METHYLALUMINOXANE- CATALYZED POLYMERIZATION OF ETHYLENE", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY, WASHINGTON, DC; US, vol. 26, no. 5, 1 January 1993 (1993-01-01), pages 1180 - 1182, XP002048572, ISSN: 0024-9297, DOI: 10.1021/MA00057A044
  • [X] VINCENZO BUSICO ET AL: "Hafnocenes and MAO: Beware of Trimethylaluminum!", MACROMOLECULES, vol. 42, no. 6, 24 March 2009 (2009-03-24), pages 1789 - 1791, XP055003610, ISSN: 0024-9297, DOI: 10.1021/ma900066n

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2012096698 A2 20120719; WO 2012096698 A3 20120920; CN 103261239 A 20130821; CN 103261239 B 20160406; EP 2630168 A2 20130828; EP 2630168 A4 20141029; EP 2915826 A1 20150909; EP 2915826 B1 20240228; KR 101821026 B1 20180122; KR 20130113470 A 20131015; KR 20150083927 A 20150720; RU 2013122565 A 20141127; RU 2592276 C2 20160720

DOCDB simple family (application)

US 2011056336 W 20111014; CN 201180059475 A 20111014; EP 11855376 A 20111014; EP 15165707 A 20111014; KR 20137012791 A 20111014; KR 20157017353 A 20111014; RU 2013122565 A 20111014