EP 1196473 A1 20020417 - METHOD FOR PREPARING METAL CYANIDE CATALYSTS USING POLYCARBOXYLIC ACIDS
Title (en)
METHOD FOR PREPARING METAL CYANIDE CATALYSTS USING POLYCARBOXYLIC ACIDS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON METALLCYANIDKATALYSATOREN MIT DER VERWENDUNG VON POLYCARBONSÄUREN
Title (fr)
PROCEDE D'ELABORATION DE CATALYSEURS DE CYANURE METALLIQUE UTILISANT DES ACIDES POLYCARBOXYLIQUES
Publication
Application
Priority
- US 0018625 W 20000707
- US 14308599 P 19990709
Abstract (en)
[origin: WO0104180A1] Metal cyanide catalysts are prepared in the presence of an organic polyacid. Active alkylene oxide polymerization catalysts are formed that have larger particle sizes than conventional metal cyanide catalysts, and thus are more easily separated from a polymer prepared with the catalyst. Preferred organic polyacids are crosslinked or uncrosslinked polymers containing pendant carboxyl or carboxylate groups.
IPC 1-7
IPC 8 full level
B01J 31/18 (2006.01); B01J 27/26 (2006.01); B01J 31/16 (2006.01); B01J 31/26 (2006.01); B01J 37/03 (2006.01); C07F 15/06 (2006.01); C08G 65/10 (2006.01); C08G 65/26 (2006.01)
CPC (source: EP KR)
B01J 27/26 (2013.01 - EP); B01J 31/165 (2013.01 - EP); B01J 31/26 (2013.01 - EP); C08G 65/10 (2013.01 - KR); C08G 65/2663 (2013.01 - EP); B01J 2531/842 (2013.01 - EP); B01J 2531/845 (2013.01 - EP)
Citation (search report)
See references of WO 0104180A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0104180 A1 20010118; AR 024682 A1 20021023; AU 5921000 A 20010130; CN 1360608 A 20020724; EP 1196473 A1 20020417; JP 2003504465 A 20030204; KR 20020027473 A 20020413; MX PA02000305 A 20020621
DOCDB simple family (application)
US 0018625 W 20000707; AR P000103497 A 20000707; AU 5921000 A 20000707; CN 00809992 A 20000707; EP 00945237 A 20000707; JP 2001509392 A 20000707; KR 20027000183 A 20020107; MX PA02000305 A 20000707