EP 4314111 A1 20240207 - NOVEL POLYETHERS ON THE BASIS OF 2,3-EPOXYBUTANE AND PROCESS FOR THE PREPARATION THEREOF
Title (en)
NOVEL POLYETHERS ON THE BASIS OF 2,3-EPOXYBUTANE AND PROCESS FOR THE PREPARATION THEREOF
Title (de)
NEUE POLYETHER AUF BASIS VON 2,3-EPOXYBUTAN UND VERFAHREN ZU DEREN HERSTELLUNG
Title (fr)
NOUVEAUX POLYÉTHERS À BASE DE 2,3-ÉPOXYBUTANE ET PROCÉDÉ POUR LEUR PRÉPARATION
Publication
Application
Priority
- EP 21165089 A 20210326
- EP 2022056440 W 20220314
Abstract (en)
[origin: WO2022200087A1] The invention relates to a process for preparing polyethers on the basis of cis-2,3-epoxybutane and trans-2,3-epoxybutane, comprising the steps a) reacting at least one starting compound (A) in the presence of a double metal cyanide catalyst (B) with 2,3-epoxybutane (C) and optionally further epoxide monomers (D) to form at least one polyether (E); and optionally b) reacting the at least one polyether (E) with at least one end-capping reagent (F) to form at least one end-capped polyether (G).
IPC 8 full level
C08G 65/26 (2006.01)
CPC (source: EP)
C08G 65/2609 (2013.01); C08G 65/2663 (2013.01); C08G 65/2696 (2013.01)
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2022056440 W 20220314; EP 22714181 A 20220314