| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a curable compsn. which is highly sensitive to a long- wavelength laser light in the visible range and is excellent in storage stability by using a dipyrromethene-boron complex as a photosensitizer. SOLUTION: At least one dipyrromethene-boron complex of the formula used as a photosensitizer for a photocurable resin compsn. in the formula, R1 , R2 , R3 , R5 , R6 and R7 are each H, a halogen, nitro, cyano, hydroxyl, amino, carboxyl, sulfo, alkyl, haloalkyl, alkoxyalkyl, acyl, alkylcarbvonyl, aminocarbonyl, alkylaminocarbonyl, aralkyl, aryl, alkylthio, alkenyl, or the like; R4 is H, cyano, alkyl, aralkyl, aryl, heteroaryl, or alkenyl; R8 is an alkyl, aryl, or aralkyl; and R9 is a halogen, alkoxy, aryloxy, or aralkyloxy.</p> |
