| 摘要 |
PROBLEM TO BE SOLVED: To obtain a low-viscosity curable dendrimer capable of reducing the compounding ratio of a low-molecular weight compound causing problems in safety and physical properties, contributing to an improvement in working environments and further manifesting good adhesion to a plastic material which has hitherto been difficult in a radiation curing system by using a polyfunctional vinyl group-containing dendrimer having a low viscosity in spite of a high molecular weight as a solventless type curable resin. SOLUTION: This vinyl group-containing dendrimer is obtained by reacting (a) a polyfunctional compound having at least 4 terminal functional groups and >=5 active hydrogens derived from the terminal functional groups in one molecule with (c) a vinyl group-containing compound having a functional group reactive with the active hydrogens so as to introduce the vinyl group into at least one of the active hydrogens derived from the active hydrogen-containing terminal functional groups possessed by the polyfunctional compound (a) and further introduce the vinyl groups into <=95% of the total active hydrogens. The dendrimer is composed of a core site, branched sites, branch sites and terminal sites and has the vinyl groups and active hydrogen-containing functional groups other than the vinyl groups as the terminal sites.
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