METHOD AND PROCESS FOR BINDER SYSTEM FOR MOULDING MIXTURES FOR THE PRODUCTION OF MOULDS AND CORES
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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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). |
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