申请人:Mitsui Toatsu Chemicals, Inc.
公开号:US05306688A1
公开(公告)日:1994-04-26
A heat-sensitive recording material comprising a color forming, electron donating compound and a salicylic acid derivative represented by the formula (1): ##STR1## wherein X.sub.1 and X.sub.2 are a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group, an aryl group or a halogen atom, Y.sub.1 and Y.sub.2 are an oxygen atom or a sulfur atom, R.sub.1 is a hydrogen atom, an alkyl group, an aralkyl group or an aryl group , and R.sub.2 is an alkyl group, an alkenyl group, an aralkyl group or an aryl group, and/or a metal salt of the salicylic acid derivative as an electron accepting compound, is disclosed.
本发明揭示了一种热敏记录材料,其包括一种产生颜色的电子给体化合物和由式(1)表示的水杨酸衍生物:##STR1## 其中X₁和X₂是氢原子、烷基、烷氧基、芳基烷基、芳基或卤素原子,Y₁和Y₂是氧原子或硫原子,R₁是氢原子、烷基、芳基烷基或芳基,R₂是烷基、烯基、芳基烷基或芳基,和/或水杨酸衍生物的金属盐作为电子受体化合物。