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    • 7. 发明授权
    • Reversible thermal recording medium
    • 可逆热记录介质
    • US5849651A
    • 1998-12-15
    • US656486
    • 1996-05-31
    • Satoshi TakayamaSawako FujiokaTetsuo OkuyamaHideyuki NishizawaHirohisa MiyamotoMasami Sugiuchi
    • Satoshi TakayamaSawako FujiokaTetsuo OkuyamaHideyuki NishizawaHirohisa MiyamotoMasami Sugiuchi
    • B41M5/337B41M5/34
    • B41M5/3375
    • A reversible thermal recording medium comprises a composition containing a color former, a developer, a reversible material capable of reversibly changing the state of the composition by supplying heat energies with two different values, and, as required, a phase separation controller which permits changing the phase separation speed of the developer at temperatures in the vicinity of the melting point of the phase separation controller, at least 80% by weight of the reversible material being a sterol compound in which the carbon-to-carbon bond between 2- and 3-positions of the stroid skeleton is a single bond, the carbon-to-carbon bond between 3- and 4-positions of the steroid skeleton is a single bond, a hydroxyl group is attached to the carbon atom in at least the 3-position of the steroid skeleton, and a specified chemical structure is bonded at 16- and 17-positions of the stroid skeleton, and the phase separation controller being provided by a low molecular organic material, the maximum carbon chain length there of being at least 10.
    • 可逆热记录介质包括含有成色剂,显影剂,能够通过提供具有两种不同值的热能可逆地改变组合物的状态的可逆材料的组合物,并且根据需要,允许改变 在相分离控制器的熔点附近的温度下显影剂的相分离速度,至少80重量%的可逆材料是固醇化合物,其中2-和3-之间的碳 - 碳键, 骨架骨架的位置是单键,类固醇骨架的3-和4-位之间的碳 - 碳键是单键,羟基在至少3-位的碳原子上连接 类固醇骨架和指定的化学结构键合在骨架的16位和17位,相分离控制器由低分子有机材料提供,m 其最大碳链长度至少为10。