| 摘要 |
A fade-resistant fluorescent colorant composition includes a polymer; a fade - susceptible fluorescent colorant, provided the fluorescent colorant is not a perylene imide derivative; and a hindered amine light stabilizer of molecula r weight greater than about 1,200 AMU. The hindered amine light stabilizer includes at least one secondary or tertiary hindered amine. A fade-resistant retroreflective article includes the colorant composition and a retroreflective structure, comprising an array of transparent optical elements. Also included are methods for forming the composition and articles .
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