| 摘要 |
Photocurable compositions containing a polyethylenically unsaturated resin compound and a monoethylenically unsaturated diluent are cured to form compositions containing essentially no polymerizable ethylenically unsaturated compounds by: (a) admixing with the composition at least about 0.1 weight percent, based upon the weight of the composition, of an electron-rich, aromatic promoter; and (b) exposing the admixture of (a) to a sufficient amount of radiant energy to essentially completely polymerize the ethylenically unsaturated components of the composition. For example, a composition consisting of the diacrylate of a bisphenol A and epichlorohydrin condensation adduct in a dicyclopentadiene acrylate diluent is vinyl polymerized in the presence of 1,4-dimethoxybenzene with electromagnetic radiation such that less than 0.2 percent unreacted dicyclopentadiene acrylate monomer is present in the resulting cured composition.
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