Dye solvents for pressure-sensitive copying systems
    1.
    发明授权
    Dye solvents for pressure-sensitive copying systems 失效
    用于压敏复印系统的染料溶剂

    公开(公告)号:US4093278A

    公开(公告)日:1978-06-06

    申请号:US754467

    申请日:1976-12-27

    Inventor: James Kern Sears

    Abstract: Solvents useful to dissolve dyes employed in pressure-sensitive copying systems comprise aryl esters of benzoic or substituted benzoic acid having the structure: ##STR1## wherein R.sub.1 is hydrogen, methyl or ethyl; R.sub.2 is hydrogen or C.sub.1 to C.sub.9 alkyl; R.sub.3 is hydrogen, methyl or ethyl; and n is zero or 1.

    Abstract translation: 用于溶解在压敏复印系统中使用的染料的溶剂包括具有以下结构的苯甲酸或取代的苯甲酸的芳基酯:其中R 1是氢,甲基或乙基; R2是氢或C1-C9烷基; R3是氢,甲基或乙基; n为0或1。

    Pressure-sensitive record material and dye solvents therefor
    2.
    发明授权
    Pressure-sensitive record material and dye solvents therefor 失效
    压敏记录材料和染料溶剂

    公开(公告)号:US3968301A

    公开(公告)日:1976-07-06

    申请号:US518309

    申请日:1974-10-29

    Inventor: James Kern Sears

    CPC classification number: B41M5/1655 Y10T428/31783

    Abstract: Pressure-sensitive record materials wherein a colorless or substantially colorless chromogen is reacted in the presence of a solvent with an acidic sensitizing material to form a colored mark in a pattern determined by the application of localized pressure to the record material are prepared utilizing terphenyls, partially hydrogenated terphenyls, and lower alkylated terphenyls having at least 65 percent aromaticity as the solvent for the chromogenic material. The terphenyl compounds which are liquids are useful alone or in combination with diluents to give rapid color development on both resin and clay coated papers. Compounds which are normally solids or semisolids are useful in combination with diluents where the combination is a liquid.

    Abstract translation: 压敏记录材料,其中无色或基本上无色的色原体在溶剂存在下与酸性增感材料反应,以通过对记录材料施加局部压力确定的图案形成着色标记,其使用三联苯部分 氢化三联苯和具有至少65%芳族化合物的低级烷基化三联苯作为显色材料的溶剂。 作为液体的三联苯化合物可单独使用或与稀释剂组合使用以在树脂和粘土涂布纸上产生快速显色。 通常为固体或半固体的化合物可与其中组合为液体的稀释剂组合使用。

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