| 摘要 |
PROBLEM TO BE SOLVED: To provide a photochromic material having sufficient color optical density that cannot be achieved by conventional photochromic materials, having a function with sharp decoloring sensitivity, and having excellent applicability to various fields such as a toy field, training field, apparel field, interior field, decoration field and print field.SOLUTION: The photochromic material comprises a photochromic compound selected from spirooxazine derivatives or spiropyran derivatives, and an acrylic oligomer having a weight average molecular weight of 12000 or less. |
