EP 2814851 A1 20141224 - METHOD FOR PRODUCING HIGH-MOLECULAR-WEIGHT POLYISOBUTYLENE
Title (en)
METHOD FOR PRODUCING HIGH-MOLECULAR-WEIGHT POLYISOBUTYLENE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON HÖHERMOLEKULAREM POLYISOBUTYLEN
Title (fr)
PROCÉDÉ DE PRODUCTION DE POLYISOBUTYLÈNE DE HAUT POIDS MOLÉCULAIRE
Publication
Application
Priority
- EP 12155872 A 20120217
- EP 2013053042 W 20130215
- EP 13704127 A 20130215
Abstract (en)
[origin: WO2013120984A1] The invention relates to the production of isobutylene homopolymers having a weight-average molecular weight of 75,000 to 10,000,000 by means of the polymerization of isobutylene by (a) performing the polymerization at -80°C to -190°C, (b) using optionally halogenated C1 to C5 hydrocarbons as an inert solvent, (c) using a Lewis acid complex as a polymerization catalyst, and (d) performing the polymerization in the presence of at least one reaction accelerator in the form of an ethylenically saturated hydrocarbon compound, which contains an oxygen atom and no proton that can be emitted, and performing the polymerization in the presence of at least one chain length regulator, which contains a tertiary olefinic carbon atom.
IPC 8 full level
C08F 10/10 (2006.01)
CPC (source: EP)
C08F 10/10 (2013.01)
Citation (search report)
See references of WO 2013120984A1
Citation (examination)
DE 3332629 A1 19850328 - BERSTORFF GMBH MASCH HERMANN [DE], et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013120984 A1 20130822; CA 2863836 A1 20130822; CA 2863836 C 20200630; CN 104136470 A 20141105; CN 104136470 B 20160824; EP 2814851 A1 20141224; JP 2015507069 A 20150305; JP 2017186577 A 20171012; JP 6234382 B2 20171122; KR 101974337 B1 20190502; KR 20140122757 A 20141020; MY 168940 A 20190110; SG 10201606861X A 20161028; SG 11201403863Y A 20141030
DOCDB simple family (application)
EP 2013053042 W 20130215; CA 2863836 A 20130215; CN 201380009872 A 20130215; EP 13704127 A 20130215; JP 2014557050 A 20130215; JP 2017141991 A 20170721; KR 20147025472 A 20130215; MY PI2014002038 A 20130215; SG 10201606861X A 20130215; SG 11201403863Y A 20130215