| 摘要 |
PROBLEM TO BE SOLVED: To provide an acid-curing composition of refractoriness granular material, which improves the strength of a mold and at the same time decreases the content of sulfonic acid in the mold without reducing the curing speed of the mold. SOLUTION: The acid-curing composition of refractoriness granular material contains: a refractoriness granular material (A); an acid-curing resin (B); an acid (C) selected from inorganic acids and organic sulfonic acids; at least a kind of solvent (D) selected from a group consisting of specific alcohols (D1), specific ether alcohols (D2), and specific esters (D3); and oxycarboxylic acid (E). COPYRIGHT: (C)2006,JPO&NCIPI
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