| 摘要 |
PURPOSE:To increase the rate of polymn. by using a specified oxime ester combined with aminophenyl ketone as a photopolymn. initiator. CONSTITUTION:An addition-polymerizable compound having >=100 deg.C b.p. under ordinary pressure and soluble in an org. solvent such as diethylene glycol di (meth)acrylate is blended with an oxime ester combined with aminophenyl ketone as a photopolymn. initiator. The oxime ester is represented by formula I (where Z is optionally substituted aryl, R1 is H or <=3C alkyl, and R2 is <=3C alkyl, aryl or <=3C alkoxy), and the aminophenyl ketone is represented by formula II (where each of R3-R6 is H or <=4C alkyl). It is preferable that an oxime ester represented by formula III (where R1 and R2 are said R1 and R2, respectively) is combined with 4,4'-bis(dimethylamino)-benzophenone or 4,4'-bis(diethylamino)benzophenone. The resulting photopolymerizable composition contg. the photopolymn. initiator has superior sensitivity to active light, and it is used as a material for a printing plate or a photoresist for forming a circuit by etching or plating. |
