| 摘要 |
PURPOSE:To prevent the generation of white spots by incorporating a specific compd. into a polymer molecule. CONSTITUTION:This material contains the compd. expressed by formula I or II in the polymer molecule. In formula I, R1 denotes a divalent org. residue; R2 and R3 denote a hydrogen atom., etc., halogen atom. or alkyl group; R4 denotes a hydrogen atom., etc.; X1 denotes an oxygen atom., etc. In formula II, R5 denotes a hydrogen atom., etc.; R6 denotes a hydrogen atom., etc.; R7 denotes a divalent org. group; X2 denotes phenyl, etc.; (n) denotes the integer in the range of 0-6. Good dot image quality is thereby obtd. when this material is processed with a developing soln. which has a good preservable property and allows a rapid processing. The generation of the white spots in a technique of using a specific compd. known as a high contrasting agent is prevented. |
