EP 1086158 A1 20010328 - POLYOL BLEND FOR THE PREPARATION OF OPEN CELL RIGID POLYURETHANE FOAMS
Title (en)
POLYOL BLEND FOR THE PREPARATION OF OPEN CELL RIGID POLYURETHANE FOAMS
Title (de)
POLYOLGEMISCH FÜR DIE HERSTELLUNG VON OFFENZELLIGEN POLYURETHANHARTSCHÄUMEN
Title (fr)
MELANGE DE POLYOLS POUR LA PREPARATION DE MOUSSES DE POLYURETHANE RIGIDE A CELLULES OUVERTES
Publication
Application
Priority
- EP 99926339 A 19990518
- EP 9903453 W 19990518
- EP 98201681 A 19980520
Abstract (en)
[origin: WO9960045A1] Polyol blend comprising: (a) a polyol component having an average hydroxyl value of 150 to 850 mg KOH/g and (b) a polymer polyol comprising a polymer stably dispersed in a base polyol medium, which base polyol medium has an average primary hydroxyl content of less than 20 %. This polyol blend is suitably applied in a process for the preparation of open cell rigid polyurethane foams, wherein it is reacted with a polyisocyanate component in the presence of at least a catalyst, a foam stabilising agent and a blowing agent. The resulting open cell rigid polyurethane foam has a density of less than 50 kg/m<3> and a closed cell content of less than 10 %, preferably of less than 5 % and can suitably be applied as heat insulating material.
IPC 1-7
IPC 8 full level
C08G 18/40 (2006.01); C08G 18/48 (2006.01); C08G 18/50 (2006.01); C08G 18/63 (2006.01); C08L 71/02 (2006.01)
CPC (source: EP)
C08G 18/4072 (2013.01); C08G 18/5024 (2013.01); C08G 2110/0025 (2021.01); C08G 2110/005 (2021.01); C08G 2110/0083 (2021.01)
Citation (search report)
See references of WO 9960045A1
Designated contracting state (EPC)
DE DK FR GB IT
DOCDB simple family (publication)
WO 9960045 A1 19991125; AU 4363899 A 19991206; CA 2329070 A1 19991125; EP 1086158 A1 20010328; JP 2002515527 A 20020528
DOCDB simple family (application)
EP 9903453 W 19990518; AU 4363899 A 19990518; CA 2329070 A 19990518; EP 99926339 A 19990518; JP 2000549662 A 19990518