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发明公开
CN106632977A 一种具有荧光特性的异氰酸酯固化剂及其制备方法 无效 - 驳回

一种具有荧光特性的异氰酸酯固化剂及其制备方法
摘要：
本发明公开了一种具有荧光特性的异氰酸酯固化剂及其制备方法，制备该具有荧光特性的异氰酸酯固化剂的原料包括：多亚甲基多苯基异氰酸酯及(E)‑4，4’‑二羟基四苯基乙烯，其中，所述多亚甲基多苯基异氰酸酯与(E)‑4，4’‑二羟基四苯基乙烯的质量比范围为99:1～80:20。其制备方案为，首先将两者溶解于一定溶剂中，然后在搅拌下升温加热反应一定时间，然后降温，再通过旋转蒸发仪蒸发以去除溶剂，最终得到所设计的产品溶剂。该发明简化了荧光漆的制备工艺，同时克服了使用传统有机荧光分子易出现聚集诱导猝灭效应的缺陷。
摘要（英）：

The invention discloses an isocyanate curing agent with fluorescence characteristic and a preparation method thereof. The raw materials for preparing the isocyanate curing agent with fluorescence characteristic include polymethylene polyphenyl isocyanate and (E)-4,4'-dihydroxyl tetraphenylethylene, wherein the mass ratio of the polymethylene polyphenyl isocyanate to (E)-4,4'-dihydroxyl tetraphenylethylene is (99:1)-(80:20). The preparation scheme comprises the following steps: dissolving the polymethylene polyphenyl isocyanate and (E)-4,4'-dihydroxyl tetraphenylethylene in certain solvent, stirring and heating for reacting for certain time; cooling; and evaporating with a rotary evaporator to remove the solvent to obtain the designed product solvent. In the invention, the preparation technology of fluorescent paint is simplified, and the defect of aggregation-induced quenching effect easily caused by adopting traditional organic fluorescent molecules is overcome.

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