Binder for producing foundry mould and core compositions

A two component binding agent system (I) comprises: (A) a phenolic resin having at least 2 OH groups per molecule; and (B) a polyisocyanate component having at least 2 isocyanate groups per molecule. (A) and (B) contain a solvent consisting of an alkylsilicate an/or an alkylsilicate oligomer. An ind...

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Bibliographische Detailangaben
Hauptverfasser: LADEGOURDIE, GERARD P.M, BARTSCH, DIETER, TORBUS, MAREK, SEEGER, KLAUS
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A two component binding agent system (I) comprises: (A) a phenolic resin having at least 2 OH groups per molecule; and (B) a polyisocyanate component having at least 2 isocyanate groups per molecule. (A) and (B) contain a solvent consisting of an alkylsilicate an/or an alkylsilicate oligomer. An independent claim is included for the production of casting molds and cores using a molding composition containing the binding agent system (I).