Two-pack adhesive systems which are curable by free radical polymerization at room temperatures are disclosed. The adhesives bond a variety of substrates, including metals and plastics. The adhesives comprise a first part containing free radical polymerizable unsaturated monomer and free radical source and a second part comprising free radical polymerizable unsaturated monomer and an activator compound for the free radical source. The activator compound is a bicyclic amidine, with 1,8-diaza-bicyclo [5.4.0] undec-7-ene being especially preferred. The use of cupric salts enhances polymerization rate.
本发明公开了可在室温下通过自由基聚合固化的双组分粘合剂系统。这种粘合剂可粘合各种基材,包括
金属和塑料。粘合剂包括第一部分(含可自由基聚合的不饱和单体和自由基源)和第二部分(含可自由基聚合的不饱和单体和自由基源的活化剂化合物)。活化剂化合物是一种双环脒,其中以 1,8-二氮双环[5.4.0]十一碳-7-烯为佳。使用
铜盐可提高聚合速度。