Photosensitive polyfunctional aromatic diazo compounds and photosensitive compositions using the same
申请人:TOYO GOSEI KOGYO CO., LTD.
公开号:EP0580121A2
公开(公告)日:1994-01-26
An aromatic diazo compound is composed mainly of a compound of Formula (I) or Formula (II), and a photosensitive composition using the same. The aromatic diazo compound can be handled under a white light, is highly photosensitive, has good shelf life, is highly soluble in organic solvents, adequate as a photosensitive agent for lithographic printing plates, can be easily developed with a developing solution composed mainly of an alkaline aqueous solution, and has an appropriate water solubility as a screen printing plate: Formula (I)
wherein ℓ, m, and n are integers where ℓ = 2 to 10, m = 0 to 5, n = 0 to 5, and ℓ + m + n = 2 to 20.
R1 and R2 are independently hydrogen, or alkyl or alkyloxy of 1 to 8 carbon atoms;
G1 is a substituent derived from alcoholic hydroxyl group;
G2 is hydroxyl or the same group as G1;
Q is a polyvalent group generated by reacting a compound having a reactivity to at least two oxiranes with carbon of the oxirane ring;
Q1 is a monovalent group generated by reacting a compound having a reactivity to oxirane with carbon of the oxirane ring;
R3 is alkyl or substituted alkyl of 1 to 8 carbon atoms, aralkyl or substituted aralkyl of 7 to 14 carbon atoms, or Q1-CH2CHG2-CH2-;
X- is an anion based on protonic acid from which a proton is removed. Formula (II)
wherein n1 to n' are integers from 0 to 10; n1 + n2 + n3 + ... + ni = 2 to 20; R1, R2, R3 and X- are respectively the same as those in Formula (I);
G2 is hydroxyl or the same group as G1 in Formula (I), and the number of hydroxyl groups represented by G2 in one molecule of a diazo compound of Formula (II) is 0 to 10, and the number of groups same as G1 is 2 to 20;
Q21 to Q2i and Qs are the same or two or more different groups, and are divalent groups generated by reacting a compound which one molecule being reactable with two oxirane rings with carbons of two oxirane rings;
R4 is the same as Q1 or G2 in Formula (I), or Formula (III). Formula (III)
wherein X-, R1, R2, and R3 are the same as in Formula (I).
一种芳香重氮化合物主要由式(I)或式(II)化合物和使用该化合物的感光组合物组成。该芳香重氮化合物可在白光下处理,光敏性强,保存期长,在有机溶剂中的溶解度高,适于作为平版印刷版的感光剂,易于用主要由碱性水溶液组成的显影液显影,作为丝网印版具有适当的水溶性:式(I)
其中 ℓ、m、n 为整数,ℓ = 2 至 10,m = 0 至 5,n = 0 至 5,ℓ + m + n = 2 至 20。
R1 和 R2 独立地为氢、1 至 8 个碳原子的烷基或烷氧基;
G1 是由醇羟基衍生的取代基;
G2 是羟基或与 G1 相同的基团;
Q 是多价基团,通过与至少两个环氧乙烷具有反应活性的化合物与环氧乙烷环的碳反应生成;
Q1 是一个单价基团,通过与环氧乙烷具有反应活性的化合物反应生成;
R3 是 1 至 8 个碳原子的烷基或取代烷基、7 至 14 个碳原子的芳基或取代芳基或 Q1-CH2CHG2-CH2-;
X- 是基于质子酸的阴离子,其中一个质子被去除。式 (II)
其中 n1 至 n' 为 0 至 10 的整数; n1 + n2 + n3 + ...+ ni = 2 至 20;R1、R2、R3 和 X- 分别与式(I)中的相同;
G2 是羟基或与式(I)中 G1 相同的基团,在一个分子的式(II)重氮化合物中,G2 所代表的羟基数目为 0 至 10,与 G1 相同的基团数目为 2 至 20;
Q21 至 Q2i 和 Qs 是相同的基团或两个或两个以上不同的基团,并且是二价基团,由一个分子可与两个环氧乙烷环反应的化合物与两个环氧乙烷环的碳反应生成;
R4 与式(I)或式(III)中的 Q1 或 G2 相同。式 (III)
其中 X-、R1、R2 和 R3 与式(I)中的相同。