An activator composition for the accelerated hardening of cyanoacrylate adhesives, wherein the activator comprises a member selected from the group consisting of: aromatic heterocyclic compounds having at least one N hetero atom in the ring(s) such as pyridines, quinolines and pyrimidines and substituted on the ring(s) with at least one electron-withdrawing group which decreases the base strength of the substituted compound compared to the corresponding unsubstituted compound, mixtures of any of the foregoing with each other, and/or with N,N-dimethyl-p-toluidine, and mixtures of any of the foregoing and/or N,N-dimethyl-p-toluidine with an organic compound containing the structural element, —N═C—S—S—, such as dibenzothiazyl disulfide. 6,6′dithiodinicotinic acid, 2,2′dipyridyl disulfide, and bis(4-t-butyl-1-isopropyl-2-imidazolyl) disulfide. An activator composition may comprise a solution of one or more activators in a solvent mixture which comprises a volatile hydrocarbon and a cyclic ketone.
一种用于加速硬化
氰基丙烯酸酯粘合剂的活化剂组合物,其中活化剂包括选自以下组别的成员芳香
杂环化合物,其环上至少有一个 N 杂原子,如
吡啶、
喹啉和
嘧啶,环上至少有一个取电子基团取代,与相应的未取代化合物相比,取代化合物的碱强度降低、上述任何物质相互之间和/或与
N,N-二甲基对甲苯胺的混合物,以及上述任何物质和/或
N,N-二甲基对甲苯胺与含有结构单元-N&boxH.C-S-S-的有机化合物的混合物;C-S-S-,如
二苯并噻唑二
硫醚的有机化合物的混合物。6,6′二
硫代烟酸、2,2′二
吡啶基二
硫化物和双(4-叔丁基-1-异丙基-2-
咪唑基)二
硫化物。活化剂组合物可包括一种或多种活化剂在溶剂混合物中的溶液,溶剂混合物包括挥发性碳氢化合物和环酮。