| 摘要 |
PURPOSE:To improve the repeatability of coloring and erasing of the title sensitive body by mounting a specified spiropyrane compd. and a specified azulene derivative on a polymer, followed by coloring the photosensitive body. CONSTITUTION:The org. photochromic sensitive body is prepared by mounting the spiropyrane compd. shown by formula I and the azulene derivative shown by formula II as a sensitizer on the polymer (such as polycarbonate), followed by photorecording the sensitive body with IR laser rays. In formula I, R1-R8, R10 and R11 are each 1-22C alkyl or 1-18C alkoxy group, etc., R9 is nitro group or halogen atom., etc. In formula II, R1-R8 are each H atom. or 1-18C alkyl group, etc. For example, the photosensitive body is formed by mixing the solution dissolving the compd. shown by formula I in the solution of the polymer and the solution dissolved a dispersing agent (such as a hydrocarbon) and the compd. shown by formula II in the solution of the polymer, followed by applying the obtd. mixture on a substrate. |
