EP 1831155 A1 20070912 - METHOD FOR THE REDUCTION OF CHLORINE-CONTAINING COMPONENTS IN ORGANIC ISOCYANATES
Title (en)
METHOD FOR THE REDUCTION OF CHLORINE-CONTAINING COMPONENTS IN ORGANIC ISOCYANATES
Title (de)
VERFAHREN ZUR REDUKTION VON CHLORHALTIGEN KOMPONENTEN IN ORGANISCHEN ISOCYANATEN
Title (fr)
PROCEDE POUR REDUIRE LES COMPOSANTS CHLORES DANS LES ISOCYANATES ORGANIQUES
Publication
Application
Priority
- EP 2005013277 W 20051210
- DE 102004063221 A 20041222
- DE 102004063222 A 20041222
Abstract (en)
[origin: WO2006072360A1] The invention relates to a method for largely eliminating chlorine compounds from organic isocyanates or isocyanate mixtures by contacting said isocyanates or isocyanate mixtures with a water-containing inert gas flow or an organic material having a cation-exchanging effect. The inventive method allows the isocyanates to be gently freed from chorine-containing compounds and is particularly suitable for temperature-sensitive isocyanates.
IPC 8 full level
C07C 263/20 (2006.01); C07C 265/04 (2006.01)
CPC (source: EP US)
C07C 263/20 (2013.01 - EP US)
Citation (search report)
See references of WO 2006072360A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006072360 A1 20060713; BR PI0519528 A2 20090217; CN 102351738 A 20120215; EP 1831155 A1 20070912; IL 183874 A0 20071031; JP 2008524273 A 20080710; US 2008228006 A1 20080918
DOCDB simple family (application)
EP 2005013277 W 20051210; BR PI0519528 A 20051210; CN 201110238415 A 20051210; EP 05815233 A 20051210; IL 18387407 A 20070612; JP 2007547251 A 20051210; US 79280605 A 20051210