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1. WO2006048141 - METHOD FOR PRODUCING POLYISOCYANATES

Publication Number WO/2006/048141
Publication Date 11.05.2006
International Application No. PCT/EP2005/011367
International Filing Date 22.10.2005
Chapter 2 Demand Filed 11.08.2006
IPC
C07C 263/10 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
263Preparation of derivatives of isocyanic acid
10by reaction of amines with carbonyl halides, e.g. with phosgene
C07C 265/12 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
265Derivatives of isocyanic acid
12having isocyanate groups bound to carbon atoms of six-membered aromatic rings
C07C 265/14 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
265Derivatives of isocyanic acid
14containing at least two isocyanate groups bound to the same carbon skeleton
CPC
C07C 263/10
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
263Preparation of derivatives of isocyanic acid
10by reaction of amines with carbonyl halides, e.g. with phosgene
C07C 263/18
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
263Preparation of derivatives of isocyanic acid
18Separation; Purification; Stabilisation; Use of additives
Applicants
  • BASF AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • SESING, Martin [DE]/[DE] (UsOnly)
  • VOSS, Hartwig [DE]/[DE] (UsOnly)
  • STROEFER, Eckhard [DE]/[DE] (UsOnly)
  • ROHDE, Thorsten [DE]/[DE] (UsOnly)
  • WÖLFERT, Andreas [DE]/[DE] (UsOnly)
Inventors
  • SESING, Martin
  • VOSS, Hartwig
  • STROEFER, Eckhard
  • ROHDE, Thorsten
  • WÖLFERT, Andreas
Common Representative
  • BASF AKTIENGESELLSCHAFT
Priority Data
102004053661.903.11.2004DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON POLYISOCYANATEN
(EN) METHOD FOR PRODUCING POLYISOCYANATES
(FR) PROCEDE POUR PRODUIRE DES POLYISOCYANATES
Abstract
(DE) Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Isocyanaten durch Umsetzung der entsprechenden Amine mit Phosgen in Anwesenheit von Lösungsmitteln, dadurch gekennzeichnet, dass als Lösungsmittel solche Verbindungen eingesetzt werden, die mit Chlorwasserstoff Salzschmelzen bilden.
(EN) The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene in the presence of solvents. Said method is characterised in that compounds forming salt melts with hydrogen chloride are used as solvents.
(FR) L'invention concerne un procédé servant à produire des isocyanates par réaction des amines correspondantes avec du phosgène en présence de solvants. Le procédé selon l'invention est caractérisé en ce qu'on utilise comme solvants des composés formant des sels fondus avec le chlorure d'hydrogène.
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