| 摘要 |
PURPOSE:To obtain a photosetting resin composition having superior sensitivity and suitable for use as a material for a photomechanical process by blending a compound having a polymerizable ethylenic unsatd. bond with merocyanine and a diaryl iodonium salt as a photopolymn. initiator. CONSTITUTION:Merocyanine represented by formula I (where R is H or alkyl, n is 0 or 1, and a ring represented by formula II is a benzothiazoline ring or a dihydroquinoline ring), e.g., merocyanine represented by formula III or IV is combined with a diaryl iodonium salt such as diphenyl iodonium or ditolyl iodonium to prepare a photopolymn. initiator. This initiator is mixed with a compound having at least one polymerizable ethylenic unsated. bond such as 2-hydroxyethyl acrylate or diethylene glycol to obtain the desired photosetting resin composition. This composition is suitable for use in the formation of a relief. |
