| 摘要 |
PURPOSE:To improve the stability with age, the fat sensitivity and the printing resistance of the composition at the time of printing by incorporating a specified diazo resin in the composition. CONSTITUTION:The diazo resin obtd. by allowing a polyisocyanate compd. (A) to react with the diazo compd. shown by formula I, is incorporated in the photosensitive composition. And the component (A) is exemplified by an aromatic, an aliphatic or an alicyclic diiso cyanate compd., a polyisocyanate compd. obtd. by allowing a polyol to react with diiso cyanate or a polymer of diiso cyanate, etc. In formula I, R<1> is alkyl group having one or more of hydroxy groups or aryl group, etc., R<2> is H atom. or alkyl group, etc., R<3> is alkyl or alkoxyl group, X<-> is an anion, (x) is 0-4. The diazo component is composed of the compd. shown by formula II, etc. |
