Indicator
    2.
    发明授权
    Indicator 失效
    指示符

    公开(公告)号:US06814909B1

    公开(公告)日:2004-11-09

    申请号:US09051200

    申请日:1998-04-03

    IPC分类号: B29C6500

    CPC分类号: G09F19/12 G09F3/02

    摘要: An indicator comprising a porous resin material, and a liquid retained in the pores of the porous resin material, in which the whiteness of the porous resin material is at least 80, and the whiteness of the porous resin material is at least 20 larger than that of the indicator. This indicator displays information such as a period through the change of a color tone, and the like, well maintains the displaying properties, and suffers from less variation of displayed periods.

    摘要翻译: 包含多孔树脂材料的指示剂和保留在多孔树脂材料的孔中的液体,其中多孔树脂材料的白度至少为80,多孔树脂材料的白度比该多孔树脂材料的白度高至少大于20 的指标。 该指示器通过改变色调等显示诸如期间的信息,良好地维持显示属性,并且显示周期的变化较小。