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发明授权
US4535348A Fluoran derivatives and recording material using same 失效
氟衍生物和使用其的记录材料

Fluoran derivatives and recording material using same
摘要：
Fluoran derivatives having an arylamino group at 2-position of the fluoran skeleton thereof and a halogen atom at 3-position of the flouran skeleton thereof, useful as a dye precursor in recording materials such as heat-sensitive, pressure-sensitive, energizable heat-sensitive, and light-sensitive recording sheets and the like.
摘要（中）：

在其荧光骨架的2位具有芳基氨基的氟类衍生物和其粉末骨架的3位上的卤素原子，可用作热敏感，压敏，可通电的热敏记录材料等记录材料中的染料前体， 敏感和感光记录纸等。

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