A one-component air-activatable polymerisable adhesive composition comprising:
(a) a free-radically polymerisable monomer, and
an activator system for effective polymerisation of the free-radically polymerisable monomer, said activator system comprising:
(b) an autoxidisable compound which is a dihydropyridine (other than a stabilised 1,4-dihydropyridine)
(c) an onium salt selected from diazonium, iodonium and sulfonium salts which do not interfere with polymerisation, and
(d) a soluble ionic salt,
with the proviso that the composition does not contain a peroxide, or a peroxide precursor which produces peroxide in the absence of air or any ingredient which is a significant source of radicals in the absence of air.
Exemplary onium salts are diaryl iodonium, triarylsulfonium and aryl diazonium salts.
一种单组分空气活化可聚合粘合剂组合物,包括
(a) 自由基可聚合单体,以及
用于有效聚合自由基可聚合单体的活化剂系统,所述活化剂系统包括
(b)
二氢吡啶(稳定的 1,4-
二氢吡啶除外)自氧化化合物
(c) 一种鎓盐,选自不干扰聚合的重氮盐、
碘盐和锍盐,以及
(d) 可溶性离子盐、
但该组合物不含有过氧化物,或在无空气时产生过氧化物的过氧化物前体,或在无 空气时成为自由基重要来源的任何成分。
典型的鎓盐有二芳基
碘盐、三芳基锍盐和芳基重氮盐。