| 摘要 |
PROBLEM TO BE SOLVED: To provide a photochromic microcapsule capable of improving light resistance which cannot be achieved by a conventional photochromic material and regulating a color tone and having excellent applicability in usability for all fields. SOLUTION: The photochromic microcapsule is obtained by encapsulating a photochromic compound selected from a spiroxazine derivative or a spiropyran derivative, a styrenic oligomer having 200-6,000 weight-average molecular weight and a compound having a phenolic hydroxy group in a capsule wall membrane. COPYRIGHT: (C)2008,JPO&INPIT
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