| abstract |
(57) [Summary] [Problem] Even at the time of pouring, even in a low temperature range of 10 to 110 ° C., no harmful gas such as amines and sulfurous acid gas is generated, and the type of molding sand is not affected. To provide a self-curing binder composition for a mold that can be cured. SOLUTION: Foundry sand (A), resol type phenolic resin (B), alkaline earth metal oxide and / or alkaline earth metal hydroxide (C), sulfur-containing oxoacid and nitrogen-containing base. The present invention provides a binder composition for a mold, comprising: |