| 摘要 |
PURPOSE: To obtain a photopolymerizable compsn. excellent in practicality such as property of making a visible image by development, aging stability and sensitivity by incorporating a specified sensitizer and a specified activator into a photopolymn. initiating system. CONSTITUTION: In a photopolymerizable compsn. contg. a compd. having at least one addition polymerizable ethylenically unsatd. bond and a photopolymn. initiating system, a sensitizer represented by the formula and at least one kind of activator capable of generating radicals when irradiated with light under coexistence with the sensitizer is incorporated into the photopolymn. initiating system. In the formula, each of R<1> -R<6> is H, halogen, alkyl, aryl, aralkyl, acyl, etc., R<7> is an optionally substd. arom. hydrocarbon group or an optionally substd. arom. heterocyclic group, R<8> is H, alkyl, aryl, aralkyl, an alkali metal atom or quat. ammonium and each of X<1> and X<2> is halogen, alkyl, aryl, aralkyl, an optionally substd. hydrocarbon substituent, etc. |
