A two-part composition curable by contact of respective parts with one another, comprising: a first part comprising a cationically polymerizable material and a first latent curing component; and a second part comprising a cationically polymerizable material and a second latent curing component which is reactive with the first component to form cations which are curingly effective for the resin. A preferred class of cation species comprises carbenium ions derived from reaction of organic halide compounds, as the first component, with silver salts of non-nucleophilic anions, e.g., SbCl₆⁻, SbCl₃⁻, SbF₆⁻, AsF₆⁻, SnCl₅⁻, PF₆⁻, BF₄⁻, CF₃SO₃⁻ and ClO₄⁻, as the second component. The respective parts of the two-part composition may be applied to matable surfaces which then are contacted to effect rapid bonding cure of the composition.
一种可通过各部分相互接触而固化的双组分组合物,包括:第一部分,由可阳离子聚合的材料和第一潜伏固化成分组成;第二部分,由可阳离子聚合的材料和第二潜伏固化成分组成,第二潜伏固化成分与第一部分反应形成对
树脂具有固化效果的阳离子。一类优选的阳离子包括有机卤化物(如第一组分)与非亲核阴离子
银盐(如 SbCl₆)反应生成的
硒离子、SbCl₆-、SbCl₃-、SbF₆-、AsF₆-、SnCl₅-、PF₆-、BF₄-、CF₃SO₃- 和 ClO₄-。可将双组分组合物的各部分涂抹在可熟化的表面上,然后与这些表面接触,以实现组合物的快速粘合固化。