| 摘要 |
PURPOSE:To obtain the composition being improved in storage stability by mixing a polyene compound having a plurality of C-C double bonds in the molecule with a polythiol compound having a plurality of thiol groups in the molecule and a photopolymerization initiator. CONSTITUTION:A polyene compound having at least two C-C double bonds in the molecule (e.g. triallyl isocyanurate) purified with ion-exchanged water to an acid value of 3 or below is mixed with a polythiol compound having at least two thiol groups in the molecule (e.g. trimethylolpropane tris-beta- mercaptopropionate) purified with ion-exchanged water to an acid value of 3 or below in a molar ratio of the C-C double bonds to thiol groups in the range of 5/1-1/5. The resultant mixture is mixed with 0.0001-10wt.%, based on the total weight of the polyene compound and the polythiol compound, photopolymerization initiator such as benzil methyl ketal and optionally other additives such as an antioxidant to obtain the composition being improved in storage stability, heat resistance and humidity resistance and having an acid value of 3 or below. |
