Provided is a curable composition which can easily regulate the properties of a cured object prepared therefrom, which can prepare a cured object that does not substantially discolor or soften a finishing agent or coating material applied to the surface thereof, and which has a high curing rate in the inner regions. The curable composition contains (A) a polymer having at least one mercapto group at the molecular ends, the polymer being derived from a thiocarbonylthio group-containing polymer (a2) prepared by polymerizing a monomer (a1) which contains an acrylic ester as a principal component and which contains 50% by weight or more of the acrylic ester and less than 50% by weight of a monomer copolymerizable with the acrylic ester in the presence of a thiocarbonylthio group-containing compound; (B) a compound having at least two mercapto groups per molecule; and (C) an oxidizing agent.
提供了一种可治愈的组合物,可以轻松调节所制备的治愈物体的性质,可以制备出不会显着变色或软化表面上涂有精加工剂或涂层材料的治愈物体,并且具有内部区域高固化速率。可治愈组合物包含(A)一种聚合物,在分子末端具有至少一个巯基,该聚合物是由含有
硫代羰基硫基的聚合物(a2)衍生而来,所述聚合物是通过在含有
硫代羰基硫基化合物的存在下聚合含有
丙烯酸酯为主要成分且含有50%或更多
丙烯酸酯和少于50%与
丙烯酸酯共聚的单体(a1)而制备的;(B)每个分子中至少有两个巯基的化合物;和(C)氧化剂。