| 摘要 |
PROBLEM TO BE SOLVED: To obtain a photopolymerizable compsn. having high sensitivity to light of long wavelength such as visible light by imparting at least one ethylenically unsatd. bond to an addition polymerizable compd. and incorporating a specified compd. into a photopolymn. initiator system. SOLUTION: This compsn. contains an addition polymerizable compd. having at least one ethylenically unsatd. bond and a photopolymn. initiator system contg. a sensitizer represented by formula I and a compd. capable of generating active radicals when irradiated with light under coexistence with the sensitizer. In the formula I, each of R<1> , R<2> and R<5> -R<7> is H, 1-10C alkyl, 2-15C acyl, 2-15C alkoxycarbonyl, etc., at least one of R<3> and R<4> is represented by formula II, etc., and at least one of R<3> and R<4> is H, 1-10C alkyl, etc. In the formula II, (n) is an integer of 0-4, R<8> is H or 1-10C alkyl and R<9> is a 4-20C arom. heterocyclic residual group. |
