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    Wetness indicator compositions comprising leuco dyes
    18.
    发明授权
    Wetness indicator compositions comprising leuco dyes 有权

    公开(公告)号：US10953129B2

    公开(公告)日：2021-03-23

    申请号：US15565832

    申请日：2016-04-13

    申请人： Savarè I.C. S.r.l.

    发明人： Italo Corzani ,  Thomas James Klofta ,  Laveeta Joseph ,  Johannson Jimmy Tee, Jr.

    IPC分类号： A61L15/56 ,  C09D11/037 ,  C09D11/34 ,  C09D11/10 ,  C09D11/50 ,  C09B67/28 ,  A61F13/00 ,  B01J20/28 ,  B65D79/02 ,  C09D11/106

    摘要： The present invention relates to wetness indicator compositions that comprise at least one leuco dye and one color developer in a hot-melt adhesive matrix. Upon contact with water or with water-containing fluids, said wetness indicator compositions are apt to change their color from a colorless state to a colorful state or from a first colored state to a second colored state having a color different from the first one; in particular, from a first colorless, white, or translucent state to a second state having a visible color, or vice versa. The disclosed wetness indicator compositions can be used as wetness/fluid indicators in various applications, e.g. in packaging articles and in absorbent articles; in an absorbent mat or sheet or operatory cloth for medical use; in a wound dressing product; in an absorbent mat or sheet for food products.

    POLYMER MICROSPHERES CONTAINING LATENT COLORANTS AND METHOD OF PREPARATION
    20.
    发明申请
    POLYMER MICROSPHERES CONTAINING LATENT COLORANTS AND METHOD OF PREPARATION 失效
    含聚合物的聚合物微球和制备方法

    公开(公告)号：US20050027045A1

    公开(公告)日：2005-02-03

    申请号：US10625684

    申请日：2003-07-23

    申请人： Jeffrey Leon ,  Tiecheng Qiao ,  Robert McCovick

    发明人： Jeffrey Leon ,  Tiecheng Qiao ,  Robert McCovick

    IPC分类号： C08J3/00 ,  C08L89/00 ,  C09B67/02 ,  C09B67/28 ,  C09D157/00 ,  G03C7/327

    CPC分类号： G03C7/3275 ,  C09B67/0077 ,  C09B67/0078 ,  C09B67/0097

    摘要： The present invention relates to a polymer microsphere comprising at least one polymer and at least one bound latent colorant, wherein the microsphere is stabilized by at least one stabilizing polymer. The invention also includes a method of preparing polymer microspheres comprising combining latent colorant, ethylenically unsaturated monomer, stabilizing polymer, and an initiator in solvent and initiating polymerization to form a polymeric microsphere stabilized by a stabilizing polymer bound to the surface of the polymeric microsphere.

    摘要翻译： 本发明涉及包含至少一种聚合物和至少一种结合的潜在着色剂的聚合物微球，其中所述微球由至少一种稳定聚合物稳定。 本发明还包括制备聚合物微球的方法，其包括将潜着色剂，烯键式不饱和单体，稳定聚合物和引发剂在溶剂中组合并引发聚合以形成通过与聚合物微球表面结合的稳定化聚合物稳定的聚合物微球。