Provided is a two-part curable composition which has excellent curability, and exhibits flexibility and adhesion durability. The two-part curable composition comprises a first reagent containing at least a 2-cyanoacrylic acid ester and a second reagent containing at least a polymer having a hydrolyzable silyl group, in which an elastomer and a curing catalyst for the above polymer are each contained in at least one of the first and second reagents in predetermined amounts. A preferable curing catalyst is a compound having a metal element and an organic group bonded to the metal element via oxygen, or an acid having a pKa of 4 or lower at 25°C. Preferably, a curing accelerator for 2-cyanoacrylic acid ester is contained in at least one of the first and second reagents.
本发明提供了一种双组分固化组合物,该组合物具有优异的固化性、柔韧性和粘合耐久性。双组分固化组合物包括至少含有
2-氰基丙烯酸酯的第一试剂和至少含有具有可
水解
硅基的聚合物的第二试剂,其中弹性体和上述聚合物的固化催化剂分别以预定量包含在第一和第二试剂中的至少一种试剂中。最好的固化催化剂是具有
金属元素和通过氧与
金属元素结合的有机基团的化合物,或在 25°C 时 pKa 为 4 或更低的酸。最好在第一和第二试剂中的至少一种中含有
2-氰基丙烯酸酯的固化
促进剂。