| 摘要 |
PURPOSE:To obtain photocurable titled oligomer capable of providing flexible coating film, by the reaction between a specific hydroxyl group-contg. isocyanurate, a reaction product from a hydroxyl group-contg. acrylate and diisocyanate, etc., with one or more components epsilon-caprolacton-modified. CONSTITUTION:The objective oligomer can be obtained by the reaction between (A) tris(2-hydroxyethyl)isocyanurate and/or an epsilon-caprolacton-modified polyol derived therefrom and (B) an ethylenic unsaturated monoisocyanate prepared by the reaction between a hydroxyalkyl(meth)acrylate and/or its epsilon-caprolacton- modified derivative and organic diisocyanate with either or both components containing epsilon-caprolacton-modified product(s).
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