Global Patent Index - EP 1735273 A1

EP 1735273 A1 20061227 - METHOD FOR PRODUCING POLYETHER ALLOPHANATES USING ZINC COMPOUNDS AS CATALYSTS

Title (en)

METHOD FOR PRODUCING POLYETHER ALLOPHANATES USING ZINC COMPOUNDS AS CATALYSTS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON POLYETHERALLOPHANATEN UNTER VERWENDUNG VON ZINK-VERBINDUNGEN ALS KATALYSATOREN

Title (fr)

PROCEDE POUR PREPARER DES POLYETHERALLOPHANATES PAR UTILISATION DE COMPOSES DE ZINC EN TANT QUE CATALYSEURS

Publication

EP 1735273 A1 20061227 (DE)

Application

EP 05729560 A 20050319

Priority

  • EP 2005002955 W 20050319
  • DE 102004015983 A 20040401

Abstract (en)

[origin: WO2005097737A1] The invention relates to a method for producing polyisocyanate prepolymers comprising allophanate structural units, using zinc compounds as catalysts and to the use of said prepolymers for producing polyurethanes and polycarbamides.

IPC 8 full level

C07C 273/18 (2006.01); C07C 275/60 (2006.01); C08G 18/78 (2006.01)

CPC (source: EP)

C07C 273/1836 (2013.01)

C-Set (source: EP)

C07C 273/1836 + C07C 275/60

Citation (search report)

See references of WO 2005097737A1

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 MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005097737 A1 20051020; CN 1946681 A 20070411; DE 102004015983 A1 20051020; EP 1735273 A1 20061227; JP 2007530751 A 20071101; US 2005222365 A1 20051006

DOCDB simple family (application)

EP 2005002955 W 20050319; CN 200580012184 A 20050319; DE 102004015983 A 20040401; EP 05729560 A 20050319; JP 2007505437 A 20050319; US 8724905 A 20050323