| 摘要 |
PROBLEM TO BE SOLVED: To provide a curing agent composition for an alkali phenol resin, capable of improving fluidity of kneaded sand, and capable of reducing generation of bubbles in a one-pot type. SOLUTION: The curing agent composition for the alkali phenol resin contains (a) a curing agent for the alkali phenol resin and (b) a nonionic surfactant. COPYRIGHT: (C)2009,JPO&INPIT |
