| abstract |
PROBLEM TO BE SOLVED: To provide a photochromic microcapsule excellent in applicability that can be used in various fields, as well as improvement in light resistance, which could not be achieved with conventional photochromic materials, and adjustment of color tone. A photochromic microcapsule in which a photochromic compound selected from spirooxazine derivatives or spiropyran derivatives, a styrene oligomer having a weight average molecular weight of 200 to 6000, and a compound having a phenolic hydroxyl group are encapsulated in a capsule wall film. [Selection figure] None |