Retrochromic articles
    43.
    发明授权

    公开(公告)号:US07036944B2

    公开(公告)日:2006-05-02

    申请号:US10122520

    申请日:2002-04-11

    CPC classification number: G02B5/128 B29C70/585 B29D11/00605

    Abstract: Retrochromic articles have a retrochromic pattern comprising first and second viewable retroreflective regions, wherein at least one viewable retroreflective region comprises a plurality of intrinsically retrochromic beads. Methods for making such articles are also provided. Articles according to the present invention have covert security features, and may be used, for example, to authenticate security articles.

    Method of making retrochromic beads and kit thereof
    44.
    发明授权
    Method of making retrochromic beads and kit thereof 有权
    制造回变珠的方法及其试剂盒

    公开(公告)号:US06978896B2

    公开(公告)日:2005-12-27

    申请号:US10122527

    申请日:2002-04-11

    CPC classification number: G02B5/128

    Abstract: The present invention provides a method of making a plurality of intrinsically retrochromic beads. The present invention further provides a kit comprising intrinsically retrochromic beads having different retroreflective colors.

    Abstract translation: 本发明提供一种制备多个本征性回变色珠粒的方法。 本发明还提供一种包含具有不同逆向反射颜色的固有回
    归色珠粒的试剂盒。

    Encapsulated electroluminescent phosphor and method for making same
    49.
    发明授权
    Encapsulated electroluminescent phosphor and method for making same 失效
    封装电致发光荧光体及其制造方法

    公开(公告)号:US5908698A

    公开(公告)日:1999-06-01

    申请号:US711215

    申请日:1996-09-09

    Applicant: Kenton D. Budd

    Inventor: Kenton D. Budd

    Abstract: Encapsulated electroluminescent phosphor particles and method for making same. The phosphor particles are encapsulated in a very thin oxide layer to protect them from aging due to moisture intrusion. The particles are encapsulated via a vapor phase hydrolysis reaction of oxide precursor materials at a temperature of between about 25.degree. C. and about 170.degree. C., preferably between about 100.degree. C. and about 150.degree. C. The resultant encapsulated particles exhibit a surprising combination of high initial luminescent brightness and high resistance to humidity-accelerated brightness decay.

    Abstract translation: 封装的电致发光荧光体颗粒及其制造方法。 磷光体颗粒被包封在非常薄的氧化物层中,以防止它们由于水分侵入而老化。 在约25℃至约170℃,优选约100℃至约150℃的温度下,通过氧化物前体材料的气相水解反应将颗粒包封。所得的包封颗粒显示出 令人惊奇的高初始发光亮度组合和高耐湿度加速亮度衰减。

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