| 摘要 |
A quinone diazide of formula (I) or formula (II): (S)l-(L1)m=-(Q)n (I) -(L2(-S))o-(L3(-Q))p-(II) wherein S is a light absorbing portion having an absorption coefficient of greater than 1000 in wavelengths longer than 360 nm; Q is a quinone diazide residue; L1, L2 and L3 are connecting groups connecting S and Q, provided, however, that L1, L2 and L3 do not conjugate S and Q; l, m, n, o and p are integers; and wherein the emission intensity of the compound of formulas (I) and (II) is smaller than the emission intensity of the chromophoric group alone. Also disclosed is a light sensitive composition comprising an alkali soluble resin and the above quinone diazide compound. The quinone diazide compound of the present invention have spectral sensitization with respect to visible light and are useful in visible light projection plates and as visible laser sensing materials. |
