To provide a curable compsn. of low viscosity and having curability, which, being a curable solventless compsn. free from solvent, decreases the content of a low mol.wt. compd. having a problem in safety and physical property, and contributes to improvement of working environment, can make a film by a conventional coating method such as a roll coater, and a knife coater, etc., and by a printing method such as offset printing, photographic printing, relief printing, screen printing, etc., and can cure by conventional radiation such as ultraviolet ray, infrared ray, electron beam, γ-ray, etc., and especially, when electron beam and γ-ray are used, without using a catalyst and an initiator, by using a polybranched compd. of high mol.wt. and low viscosity.
This compsn. comprises 5-99 wt.% vinyl dendrimer (A), and 1-95 wt.% other compd. contg. a polymerizable unsaturated group (B). This dendrimer contg. a vinyl group is composed of a core site, a branched site, a branch site, and at least 4 end sites, and has a vinyl group and a functional group contg. an active hydrogen as end site.
NAKAMURA MINORU
SUNAHARA KENROU
KURIHASHI TORU
KAWASHIMA YOSHINORI
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