EP 1037936 A1 20000927 - PROCESS FOR PREPARING POLYETHER POLYOLS AND POLYOLS PREPARED THEREWITH
Title (en)
PROCESS FOR PREPARING POLYETHER POLYOLS AND POLYOLS PREPARED THEREWITH
Title (de)
HERSTELLUNGSVERFAHREN FÜR POLYETHERPOLYOLE UNS DAMIT HERGESTELLTE POLYOLE
Title (fr)
PROCEDE DE PREPARATION DE POLYETHERPOLYOLS ET POLYOLS PREPARES AVEC CETTE PROCEDE
Publication
Application
Priority
- US 9824332 W 19981113
- US 6531697 P 19971113
Abstract (en)
[origin: WO9947581A1] Polyether polyols suitable for use in preparing rigid polyurethane foam are prepared by a process utilizing imidazole catalysts. The imidazole catalysts do not lose reactivity at higher tempera tures and can be used at higher temperatures to prepare polyols thereby decreasing residence time and energy consumption in polyol production processes.
IPC 1-7
IPC 8 full level
C08G 18/48 (2006.01); C08G 18/50 (2006.01); C08G 65/26 (2006.01)
CPC (source: EP KR)
C08G 18/5021 (2013.01 - EP KR); C08G 65/26 (2013.01 - KR); C08G 65/2606 (2013.01 - EP KR); C08G 65/2672 (2013.01 - EP KR); C08G 65/2696 (2013.01 - EP KR); C08G 2110/0025 (2021.01 - EP)
Citation (search report)
See references of WO 9947581A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL PT SE
DOCDB simple family (publication)
WO 9947581 A1 19990923; AR 017610 A1 20010912; AU 5264199 A 19991011; BR 9813280 A 20000822; CA 2309138 A1 19990923; CN 1278838 A 20010103; CO 5050318 A1 20010627; EP 1037936 A1 20000927; ID 24600 A 20000727; JP 2002506897 A 20020305; KR 20010015813 A 20010226; PL 340826 A1 20010226; TR 200001289 T2 20001121; ZA 9810410 B 20000515
DOCDB simple family (application)
US 9824332 W 19981113; AR P980105741 A 19981112; AU 5264199 A 19981113; BR 9813280 A 19981113; CA 2309138 A 19981113; CN 98811124 A 19981113; CO 98067228 A 19981113; EP 98967113 A 19981113; ID 20000776 A 19981113; JP 2000536770 A 19981113; KR 20007005178 A 20000512; PL 34082698 A 19981113; TR 200001289 T 19981113; ZA 9810410 A 19981113