Acid-curable, refractory particulate material composition for forming mold

Abstract

The present invention provides a refractory granular material composition for a self-hardening molding by acid-hardening, consisting essentially of: a refractory granular material, an acid-hardening resin-containing binder composition, an acid-containing hardener composition, and at least one solvent selected from the group consisting of (1) alcohols, (2) ether alcohols and ester shown below: wherein R1 represents a C4 to C8 straight-chain or branched aliphatic hydrocarbon group or a benzyl group; R2 represents a C1 to C10 straight-chain or branched aliphatic hydrocarbon group, phenyl group or a benzyl group; R3 represents an ethylene group or a propylene group; n is an integer of 1 to 12; R4 represents, phenyl group or a methyl group; and R5 is a C2 to C6 aliphatic hydrocarbon group or (R3 —O)n R2.

Dependencies are inferred from the claim text.