EP 1414901 A1 20040506 - RESOL-BASED CO 2-HARDENABLE BINDING AGENT SYSTEM
Title (en)
RESOL-BASED CO 2-HARDENABLE BINDING AGENT SYSTEM
Title (de)
CO 2-HÄRTBARES BINDEMITTELSYSTEM AUF RESOLBASIS
Title (fr)
SYSTEME DE LIANT DURCISSABLE AU CO 2 A BASE DE RESOL
Publication
Application
Priority
- DE 0202542 W 20020711
- DE 10136365 A 20010726
Abstract (en)
[origin: DE10136365A1] A carbon dioxide curable binder system including: (a) a resol resin and (b) at least one oxy anion, where the binder system contains at least one nitrogen-containing compound selected from: urea, urea/formaldehyde resin, melamine, and melamine formaldehyde resin, especially a urea and a urea/formaldehyde resin is new. Independent claims are included for: A process for preparation of the CO2 curable binder system by the steps; (A) preparation of the resol resin, and (B) mixing of the resol resin with at least one oxy anion selected from: urea, urea/formaldehyde resin, melamine and melamine/formaldehyde resin; (3) preparation of the resol resin, i.e. by the steps (1) condensation of phenol and aldehyde in the presence of a nitrogen-containing compound, i.e. urea, urea/formaldehyde resins, melamine/formaldehyde resins, and (2) mixing of the resol resin with at least one oxyanion; and (C) a molding composition including an aggregate, an oxy anion, a nitrogen compound selected from: urea, urea/formaldehyde resin, melamine and melamine/formaldehyde resin and an active binding amount of a CO2 curable resol resin; and (D) use of the binder system for the preparation of mold parts by the steps: (1) mixing of the aggregates with an active binding amount of the binder system, (2) transfer of the mold mixture into a mold, (3) curing of the mold mixture in the mold in order to obtain a self-supporting mold, and (4) removal of the formed mold mixture and further curing to give a hard solid and cured mold part.
IPC 1-7
IPC 8 full level
C08L 61/06 (2006.01); C08L 61/34 (2006.01); C09D 161/06 (2006.01)
CPC (source: EP)
C08L 61/06 (2013.01); C08L 61/34 (2013.01); C09D 161/06 (2013.01)
Citation (search report)
See references of WO 03016400A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
DE 10136365 A1 20030213; EP 1414901 A1 20040506; NO 20040315 L 20040317; PL 368607 A1 20050404; WO 03016400 A1 20030227
DOCDB simple family (application)
DE 10136365 A 20010726; DE 0202542 W 20020711; EP 02754350 A 20020711; NO 20040315 A 20040123; PL 36860702 A 20020711