| abstract |
(57) [Summary] (Modified) [Solution] A fluorine oligomer containing a main chain ester terminal at both ends, a fluorine oligomer containing an unsaturated group at both terminals of the main chain and a fluorine oligomer containing an alcoholic hydroxyl group at both ends of the main chain have a number average molecular weight. Is 1000 to 10,000 Which has an ester group, an unsaturated group, and an alcoholic hydroxyl group at both ends of the main chain of the fluorine oligomer. Further, the method for producing a fluorine oligomer having an unsaturated group or an alcoholic hydroxyl group at both ends of the main chain includes a fluorine oligomer having an ester group at both ends of the main chain, and an unsaturated group-containing amine or an alcoholic hydroxyl group-containing amine, respectively. Are reacted at 60 ° C. or lower. The curable composition comprises a fluorine-containing oligomer having a main chain unsaturated terminal at both ends, a (meth) acrylic monomer, and a photopolymerization initiator or radical generator. Further, the curable composition comprises a fluorine oligomer having an alcoholic hydroxyl group at both terminals of the main chain and a polyisocyanate compound. [Effect] By providing a fluorine-containing oligomer having functional groups at both ends of the main chain in a curable composition, a curable composition having a high curing speed and excellent in toughness, elasticity, elasticity and the like is provided. . |