The present invention is to provide a monomer mixture that is cured rapidly even in the presence of oxygen and that forms a cured product having high hardness and excellent adhesion to metals and/or glass. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. As the cationically polymerizable monomers, the monomer mixture contains at least 10 wt.%, based on a total amount of the monomer mixture, of a compound having at least one cationically polymerizable group selected from the group consisting of a vinyl ether group, an epoxy group, and an oxetanyl group, and at least one hydroxy group in a molecule, and at least 5 wt.%, based on the total amount of the monomer mixture, of a compound represented by Formula (b). In the formula, R represents an s-valent straight-chain or branched saturated aliphatic hydrocarbon group or an s-valent group having two or more straight-chain or branched saturated aliphatic hydrocarbon groups bonded to each other through an ether bond, and s represents an integer of 2 or greater.
本发明旨在提供一种单体混合物,该单体混合物即使在有
氧气存在的情况下也能快速固化,并能形成一种具有高硬度且与
金属和/或
玻璃具有优异粘附性的固化产品。根据本发明的一个实施方案,单体混合物含有两种或两种以上的阳离子可聚合单体。作为阳离子可聚合单体,单体混合物含有至少 10 重量%的化合物(以单体混合物的总量为基准),该化合物具有至少一个阳离子可聚合基团,该基团选自由
乙烯基醚基、环氧基和氧杂
环丁基组成的组,以及分子中至少一个羟基;以及至少 5 重量%的化合物(以单体混合物的总量为基准),该化合物由式(b)表示。式中,R 代表 s 价直链或支链饱和脂肪族烃基,或具有两个或两个以上通过醚键相互键合的直链或支链饱和脂肪族烃基的 s 价基团,s 代表 2 或更大的整数。