Heat-sensitive recording sheet
    74.
    发明授权
    Heat-sensitive recording sheet 失效
    热敏记录纸

    公开(公告)号:US4630080A

    公开(公告)日:1986-12-16

    申请号:US795991

    申请日:1985-11-06

    IPC分类号: B41M5/333 B41M5/337 B41M5/18

    CPC分类号: B41M5/3336 B41M5/3377

    摘要: A heat-sensitive recording sheet comprising both calcium monobenzyl phthalate as stabilizer and 4-isopropoxy-4'-hydroxy diphenylsulfone and/or 4-methyl-4'-hydroxy diphenylsulfone as organic developer in heat-sensitive layer which comprises a basic colorless dyestuff and an organic developer. This heat-sensitive recording sheet provides the improved stability of developed color image against sticking of hair tonics and oils, etc.

    摘要翻译: 一种热敏记录片材,其包含邻苯二甲酸钙作为稳定剂和4-异丙氧基-4'-羟基二苯砜和/或4-甲基-4'-羟基二苯砜作为热敏层中的有机显影剂,其包含碱性无色染料和 一个有机开发者 这种热敏记录片材提供了显影的彩色图像对毛发和油等的粘着的改进的稳定性。

    Thermosensitive recording sheet
    75.
    发明授权
    Thermosensitive recording sheet 失效
    热敏记录纸

    公开(公告)号:US4628336A

    公开(公告)日:1986-12-09

    申请号:US753905

    申请日:1985-07-11

    IPC分类号: B41M5/337 B41M5/18

    CPC分类号: B41M5/3375

    摘要: A thermosensitive recording sheet having a thermosensitive color developing layer containing a basic leuco dye and an organic color developer, said layer containing a polyphenyl ester compound of the general formula ##STR1## wherein R.sup.1 and R.sup.2, independently from each other, represent an alkyl group, a cycloalkyl group, or an aryl, aralkyl or aryloxyalkyl group which may have at least one substituent selected from the class consisting of halogen atoms, nitro groups, hydroxyl groups, lower alkyl groups and lower alkoxy groups.

    摘要翻译: 一种热敏记录片材,其具有含有碱性无色染料和有机显色剂的热敏彩色显影层,所述层含有通式为(I)的聚苯酯化合物,其中R1和R2彼此独立地表示 烷基,环烷基或芳基,芳烷基或芳氧基烷基,其可以具有至少一个选自卤素原子,硝基,羟基,低级烷基和低级烷氧基的取代基。

    Heat-sensitive recording sheet
    77.
    发明授权
    Heat-sensitive recording sheet 失效
    热敏记录纸

    公开(公告)号:US4498091A

    公开(公告)日:1985-02-05

    申请号:US590199

    申请日:1984-03-15

    IPC分类号: B41M5/333 B41M5/18

    CPC分类号: B41M5/3335

    摘要: It has been found that phthalic acid monoester represented by the general formula: ##STR1## in which R is a saturated alkyl group of 4 to 20 carbon atoms where X is an alkyl group, a halogen or an alkoxy group, is applicable as color-developing agent to prepare heat-sensitive recording sheet with excellent results. It is observed that one of the two carboxylic acid groups of which phthalic acid is composed is esterified with the group mentioned in the claim to form water-insoluble, insublimable compound having melting point of 90.degree. to 130.degree. C. wherein the group introduced controls the acidity of the adjacent carboxylic acid group into a condition suitable for stable and concentrated color-development of colorless dye.

    摘要翻译: 已经发现,通式为:其中R是4至20个碳原子的饱和烷基,其中X是烷基,其中X是烷基, 卤素或烷氧基可用作彩色显影剂以制备具有优异结果的热敏记录片材。 观察到,其中组成邻苯二甲酸的两个羧酸基团之一与权利要求中提及的基团酯化,形成熔点为90至130℃的不溶于水的不溶性化合物,其中该基团引入对照 相邻羧酸基团的酸度适合于使无色染料稳定且浓缩显色的条件。