| abstract |
(57) [Problem] To provide a reversible thermochromic composition in which the color change temperature can be freely adjusted even with the same combination of an electron-donating compound and an electron-accepting compound, and light resistance is remarkably improved during decolorization. I will provide a. SOLUTION: a. An electron donating compound; b. An electron-accepting compound having an ultraviolet absorbing ability represented by the following general formula I: {Wherein, X: H, -C n H 2n + 1, -OC m H 2m + 1 , m = 1 to 9; n = 1 to 10; p = Integer of 1-3. ｝ C. A reversible thermochromic composition comprising a color changing temperature regulator and having improved light resistance, and a product using the same. |