| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin composition for coating cans that has excellent spreadability with excellent over-bake resistance, dent resistance, acid resistance and no pinhole. SOLUTION: The resin composition for waterborne can-coating comprises (A) a polyester having a acid value of 150 to 800 eq/10<SP>6</SP>g and a number average molecular weight of 5,000 to 100,000 produced from, as the polycarboxylic acid component, 70 to 100 mol% of aromatic dicarboxylic acid, 0 to 30 mol% of other polycarboxylic acids, and as the polyhydric alcohols, including 2-ethyl-2-butyl-1,3-propanediol, as the essential component, additionally at least one selected from the group consisting of 2-methyl-1,3-propanediol, 1,4-butanediol, and 1,4-cyclohexanedimethanol and the total of them is 40 to 100 mol% and include 0 to 60 mol% of other polyhydric alcohol; (B) a resol type phenolic resin; (C) a basic compound; and water. COPYRIGHT: (C)2006,JPO&NCIPI
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