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Pressure-sensitive recording material

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专利汇可以提供Pressure-sensitive recording material专利检索,专利查询,专利分析的服务。并且PURPOSE: To improve color forming properties and the stability of a developed color image by containing an electron donating leuco dye and a specific salicylic acid derivative or a metal salt thereof.
CONSTITUTION: An electron donating leuco dye and a salicylic acid derivative represented by formula (wherein R is a hydrogen atom, a halogen atom or an alkyl group and, among substituents represented by R, a hydrogen atom or a 1-23C alkyl group is pref.) or a metal salt thereof are contained. As the metal salt of the salicylic acid derivative, a zinc salt, an aluminum salt, a magnesium salt, a potassium salt, a sodium salt and a nickel salt are pref. As the electron donating leuco dye, there are a triphenylmethane phthalide compound, a fluorane compound, a phenothiazine compound, an indolylphthalide compound, a leucoauramine compound, a rhodamine lactam compound or the like.
COPYRIGHT: (C)1990,JPO&Japio,下面是Pressure-sensitive recording material专利的具体信息内容。

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