| 摘要 |
<p>PURPOSE:The titled composition, containing a specific modified epoxy compound, polymerization initiator having the ability to initiate cationic polymerization by irradiation with light and photosensitizer, curable into thick films and giving cured articles having excellent transparency and suitable for protecting, decorating insulating uses, etc. CONSTITUTION:A composition containing (A) an epoxy compound modified with a compound having polymerizable ethylenically unsaturated group, e.g. vinyl isocyanate, etc., (B) preferably 0.01-10wt% polymerization initiator having the ability to initiate cationic polymerization by irradiation with light, preferably onium compound expressed by the formula (R is monofunctional aromatic organic group; R<1> is alkyl, etc.; R<2> is aliphatic or aromatic group; X is diazonium, halogen, etc.; Q is halogen; a is 0-3; b is 0-2; c is 0-1; a+b+c is 3; d is e-f; f is 2-7; e is <=5) and (C) preferably 0.01-10wt% photosensitizer, e.g. benzoin, etc.</p> |
