| 摘要 |
PURPOSE:To provide the titled resin composition with deflectivity and flexibility, curable at low temperatures in a short time, comprising a dipolar ionic group- contg. aminoplast resin or its blend with an aqueous resin. CONSTITUTION:The objective resin composition comprising (A) a curable aminoplast resin having in the molecule dipolar ionic group of formula] (R is (substituted) 1-6C alkylene or phenylene Y<-> is of formula II or III) with the dipolar ionic group value 2-40 expressed by mg number of KOH necessary for neutralization of said dipolar ionic group contained in 1g of the resin (e.g., a resin made by etherification of the methylol group in melamine resin using a hydroxyl group-contg. aminosulfonic acid). or (B) a blend of the resin A with an aqueous resin (e.g., acrylic resin, polyesxter resin, epoxy resin) with the weight ratio 95/5-5/95 on a solid basis.
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