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    • 1. 发明授权
    • Acid-sensitive leuco dye polymeric films
    • 酸敏感无色染料聚合物膜
    • US5206118A
    • 1993-04-27
    • US722391
    • 1991-06-19
    • Lu Ann N. SidneyDoreen C. LynchPeggy S. Willett
    • Lu Ann N. SidneyDoreen C. LynchPeggy S. Willett
    • G01T1/04
    • G01T1/04
    • A color-change dosimeter film made of a halogen-containing polymer in which is dispersed an acid-sensitive leuco dye, which dye a) is substantially free from groups that are sensitive to high-energy radiation and b) becomes colored in acid. This color-change dosimeter film (1) remains substantially colorless upon exposure to artificial illumination, including fluorescent light, for at least several months, (2) becomes colored upon exposure to high-energy radiation and accurately indicates small changes in dosage by the intensity of its color, and (3) remains substantially unchanged in its intensity of that color after being stored for several months, whether or not exposed to artificial illumination. An article of either quantitative or qualitative determination of the extent of high-energy radiation exposure is also provided, displaying a colored message of words, codes, symbols, or patterns on a substrate after exposure to the high-energy radiation.
    • 由其中分散有酸敏感的无色染料的含卤聚合物制成的变色剂量计膜,该染料a)基本上不含对高能辐射敏感的基团,b)在酸中着色。 这种变色剂量计薄膜(1)暴露于人造照明(包括荧​​光)至少几个月时保持基本上无色,(2)在暴露于高能量辐射下变得着色,并且通过强度精确地指示剂量的小变化 的颜色,以及(3)在保存数月后,其颜色的强度基本上保持不变,无论是否暴露于人造照明。 还提供了定量或定性确定高能量辐射暴露程度的文章,在暴露于高能量辐射之后,在基板上显示单词,代码,符号或图案的彩色消息。
    • 10. 发明授权
    • Sealing method and article
    • 密封方法和文章
    • US5964979A
    • 1999-10-12
    • US911742
    • 1997-08-15
    • Clayton A. GeorgeMichael A. JohnsonPeggy S. Willett
    • Clayton A. GeorgeMichael A. JohnsonPeggy S. Willett
    • B60R13/04F16J15/14B32B31/20B60J10/00
    • B60R13/04Y10T428/24479Y10T428/24826
    • The present invention includes a method for sealing a discontinuity in the surface of a substrate comprises the steps of: (a) placing over the discontinuity an article comprising (i) a melt-flowable composition characterized by a first width, and (ii) a shaped, polymeric cap having a pre-selected, cross-sectional profile characterized by a second width and a shape in which the thickness of the cup across its width, the width of the cap, or both the width and thickness of the cap vary; (b) heating the article to cause the melt-flowable composition to flow and seal the discontinuity, where the cap controls the melt-flow behavior of the melt-flowable composition to substantially confine the melt-flowable composition to the area underneath the cap; and (c) allowing the article to cool while substantially retaining the pre-selected cross-sectional profile of the cap. The present invention also includes various articles for use in the method. The article and the method are particularly useful for sealing the joint in a motor vehicle roof ditch.
    • 本发明包括用于密封基材表面中的不连续性的方法,包括以下步骤:(a)将不连续物放置在制品上,所述制品包括(i)以第一宽度为特征的可熔融流动的组合物,和(ii) 其具有预先选定的横截面轮廓,其特征在于第二宽度和形状,其中杯的厚度在其宽度,帽的宽度或盖的宽度和厚度两者之间变化; (b)加热制品以使可熔融流动的组合物流动并密封不连续性,其中盖控制可熔融流动的组合物的熔体流动行为以基本上将可熔融流动的组合物限制在盖下面的区域; 和(c)允许制品冷却,同时基本上保持盖的预先选定的横截面轮廓。 本发明还包括用于该方法的各种制品。 该制品和该方法对于密封机动车辆车顶沟槽中的接头是特别有用的。