EP 1531018 B1 20090415 - Foundry binder system with low emission of aromatic hydrocarbons
Title (en)
Foundry binder system with low emission of aromatic hydrocarbons
Title (de)
Giessereibindemittelsysteme mit niedriger Emission von aromatischen Kohlenwasserstoffen
Title (fr)
Liants pour la fonderie avec émission faible d'hydrocarbures aromatiques
Publication
Application
Priority
IT MI20032217 A 20031114
Abstract (en)
[origin: EP1531018A1] A description is given of an acid hardener which can be used in the preparation of furan resin-based foundry binder systems of the no-bake type having the following composition by weight: a) water 10-50% b) sulphuric acid 0.5-40% c) aliphatic hydroxy acid 10-60% d) arylsulphonic acid 0-20% <??>This hardener eliminates or in any case reduces the emissions of aromatic hydrocarbons and benzene in particular which usually occur during the use of conventional furan resin-based binders.
IPC 8 full level
CPC (source: EP)
B22C 1/10 (2013.01); B22C 1/224 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1531018 A1 20050518; EP 1531018 B1 20090415; AT E428520 T1 20090515; DE 602004020568 D1 20090528; IT MI20032217 A1 20050515
DOCDB simple family (application)
EP 04105709 A 20041111; AT 04105709 T 20041111; DE 602004020568 T 20041111; IT MI20032217 A 20031114