METHOD FOR IDENTIFYING ARTICLES AND PROCESS FOR MAINTAINING SECURITY
    21.
    发明申请
    METHOD FOR IDENTIFYING ARTICLES AND PROCESS FOR MAINTAINING SECURITY 失效
    识别文章的方法和维护安全的过程

    公开(公告)号:US20080206486A1

    公开(公告)日:2008-08-28

    申请号:US11954253

    申请日:2007-12-12

    IPC分类号: B05D3/06

    摘要: The invention is directed to a method by exposing at least a portion of a luminescent coating disposed on a surface of an article to ultraviolet light at one or more preselected wavelengths causing said luminescent coating to exhibit a luminescence spectrum, the luminescence spectrum exhibiting a plurality of intensity peaks that have been predetermined to create a standard; determining the intensity of at least two peaks in the luminescence spectrum of the coating; determining a peak intensity ratio of the at least two peaks; comparing the peak intensity ratio determined with the standard; and, classifying the article according to whether or not the peak intensity ratio does or does not match the standard; wherein the luminescent coating is a particulate luminescent composition comprising a rare earth doped fluoride represented by the chemical formula REx(CaaSrbBac)1−xF2+x−2yOy wherein RE represents a three-valent rare-earth element, 0.005≦x≦0.20, and 0≦y≦0.2, a+b+c=1, with the proviso at least two of a, b, and c are not equal to zero; the particulate luminescent composition exhibiting a luminescence spectrum having a plurality of intensity peaks at characteristic wavelengths.

    摘要翻译: 本发明涉及通过将设置在制品表面上的发光涂层的至少一部分暴露于一个或多个预选波长的紫外光的方法,使得所述发光涂层呈现出发光光谱,所述发光光谱呈现多个 预先确定的强度峰值来创建标准; 确定涂层的发光光谱中至少两个峰的强度; 确定所述至少两个峰的峰强度比; 比较用标准测定的峰强度比; 并根据峰值强度比是否与标准不符,对物品进行分类; 其中所述发光涂层是颗粒发光组合物,其包含由化学式<βin-line-formula description =“In-Line Formulas”end =“lead”→> RE

    Coatable compositions, coatings prepared therefrom, process and luminescent coated articles
    28.
    发明授权
    Coatable compositions, coatings prepared therefrom, process and luminescent coated articles 有权
    涂布组合物,由其制备的涂层,工艺和发光涂层制品

    公开(公告)号:US07704599B2

    公开(公告)日:2010-04-27

    申请号:US11749780

    申请日:2007-05-17

    IPC分类号: B32B5/66

    摘要: The invention is directed to a composition having a carrier matrix, and a particulate luminescent composition dispersed therein, the particulate luminescent composition comprising a rare-earth-doped alkaline earth fluoride represented by the formula RExA1−xF2+x−2yOy wherein RE represents a three-valent rare-earth element, A is alkaline earth, 0.002≦x≦0.20, and 0≦y≦x; the particulate luminescent composition exhibiting a luminescence spectrum having a plurality of intensity peaks at characteristic wavelengths. It is further directed to a process by contacting a surface with the composition and articles made therefrom.

    摘要翻译: 本发明涉及具有载体基质和分散在其中的颗粒状发光组合物的组合物,该颗粒发光组合物包含由式RExA1-xF2 + x-2yOy表示的稀土掺杂碱土金属氟化物,其中RE表示三 稀土元素,A为碱土金属,0.002&nlE; x&nlE; 0.20和0&nlE; y&nlE; x; 所述颗粒状发光组合物在特征波长处显示出具有多个强度峰值的发光光谱。 进一步涉及通过使表面与由其制成的组合物和制品接触的方法。

    Rare-earth doped fluorides and process for preparing
    30.
    发明授权
    Rare-earth doped fluorides and process for preparing 有权
    稀土掺杂氟化物及其制备方法

    公开(公告)号:US07625503B2

    公开(公告)日:2009-12-01

    申请号:US11749771

    申请日:2007-05-17

    IPC分类号: C09K11/61

    摘要: The invention is directed a composition represented by the chemical formula EuxA1−xF2+x−2yOy wherein A is alkaline earth, 0.002≦x≦0.20, and 0≦y≦x; the composition exhibiting a luminescence spectrum characterized by peaks at 592±2 nm and 627±2 nm, wherein the ratio of the peak intensity at 592±2 nm to that at 627±2 nm is at least 5% larger than the corresponding peak intensity ratio at the same wavelengths of a first corresponding reference composition with the same value of x that has not been exposed to a temperature above 100° C., and wherein said ratio of the peak intensity at 592±2 nm to that at 627±2 nm is at least 5% smaller than the corresponding peak intensity ratio at the same wavelengths of a second corresponding reference composition with the same value of x that has been subject to heating to 900° C. for 6 hours.

    摘要翻译: 本发明涉及由化学式EuxA1-xF2 + x-2yOy表示的组合物,其中A为碱土金属,0.002≤x≤0.20,0 <= y <= x; 该组合物表现出以592±2nm和627±2nm的峰为特征的发光光谱,其中592±2nm处的峰强度与627±2nm处的峰强度的比例比相应的峰强度至少大5% 在相同波长的相同波长处的相同波长的第一对应参考组合物具有未暴露于高于100℃的温度的相同的x值,并且其中所述592±2nm处的峰强度与627±2nm处的峰强度比 nm相对于第二相对应参考组合物的相同波长的相应峰强度比例至少比具有与900℃加热6小时相同的x值。