| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an irradiation-curable composition showing a low-enough viscosity for coating even with a small amount of a reactive diluent. Ž<P>SOLUTION: The irradiation-curable composition includes an oligomer having both a diisocyanate residue having a ring structure and a diisocyanate residue having no aromatic ring and a reactive diluent containing at least an alkoxylated diluent having no aromatic ring, and at least 50 mol% of the diisocyanate used for the formation of the oligomer has no ring structure, the content of the reactive diluent is not more than 45 wt.% of the total weight of the composition, and the composition has a viscosity of less than 10,000 cps at 25°C, and the alkoxylated diluent is at least one selected from the group consisting of ethoxylated or propoxylated lauryl acrylate and ethoxylated or propoxylated isodecyl acrylate. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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