CASTING MOLD URETHANE CURABLE ORGANIC BINDER, CASTING MOLD SAND COMPOSITION OBTAINED BY USING THE SAME AND CASTING MOLD

摘要

To provide a urethane curable organic binder which can advantageously impart a casting mold which is improved in rigidity and a moisture adsorption resistance characteristic, and to provide the casting mold urethane curable organic binder which can effectively improve the rigidity of the casting mold by being neglected after molding.SOLUTION: A urethane curable organic binder used for molding a urethane-system casting mold further contains a reaction product of a basicity silane compound, an acid or its halogenide together with a polyol compound and a polyisocyanate compound as a constituent component.SELECTED DRAWING: None