| 摘要 |
Disclosed are a modified polyvinyl acetal resin consisting essentially of repeating units represented by the following formula (I), and a modifier for curable resins which comprises the modified polyvinyl acetal resin:wherein R<1 >represents an optionally substituted aryl group, an optionally substituted aralkyl group, or an optionally substituted alkenyl group having an optionally substituted aryl group; R<2 >represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; R<3 >represents an optionally substituted, bivalent hydrocarbon group having 1 to 20 carbon atoms; and a, b, c, d, and e indicate the proportions in mol % of the respective structural units in the formula and satisfy 0<a<=85, 0<=b<=80, 0<=c<=50, 0<=d<=30, and 0<e<=50; a curable resin composition comprising a curable resin (A), a curing agent (B), and a modified polyvinyl acetal resin (C) consisting essentially of repeating units represented by (I'); and a laminated product comprising a layer of the curable resin composition and/or a cured composition obtained therefrom and a substrate layer:wherein R<1>, R<2>, and R<3 >are as defined above and a, b, c, d, and e, indicating the proportions in mol % of the respective structural units in the formula, satisfy 0<=a<=85, 0<=b<=80, 0<=c<=50, 0<=d<=30, 0<=e<=50, and a+b<>0.
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