Thermally-responsive record material
    2.
    发明授权
    Thermally-responsive record material 失效
    热应答记录材料

    公开(公告)号:US5164357A

    公开(公告)日:1992-11-17

    申请号:US710493

    申请日:1991-06-05

    IPC分类号: B41M5/337

    CPC分类号: B41M5/3372

    摘要: An improved heat-sensitive recording material is disclosed comprising a substrate, a binder, a chromogenic material, an electron-accepting color developer which reacts with said chromogenic material to form a color, and a color-stabilizing resin. The color stabilizing resin comprises an addition product of a diolefinic alkylated or alkenylated cyclic hydrocarbon or, an addition product of a phenol and a diolefinic alkylated or alkenylated cyclic hydrocarbon. The color-stabilizing resin, dye, and developer, have a weight percent resin phenolic group of about 5 or less. The heat-sensitive recording material has a fade index greater than 45. Imaged recording materials according to the invention resist fading when exposed to temperatures of 60.degree. C. for prolonged periods such as twenty-four hour oven tests.