Thermoplastic composition having improved X-ray contrast, method of making, and articles prepared therefrom
    4.
    发明授权
    Thermoplastic composition having improved X-ray contrast, method of making, and articles prepared therefrom 有权
    具有改善的X射线对比度,制备方法和由其制备的制品的热塑性组合物

    公开(公告)号:US08617700B2

    公开(公告)日:2013-12-31

    申请号:US12242076

    申请日:2008-09-30

    摘要: Disclosed herein is an article and thermoplastic composition comprising a polysiloxane-polycarbonate, optionally, a polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein a 3.2 mm thick article molded from the thermoplastic composition has a notched Izod impact strength of greater than or equal to about 620 J/m, when measured at a temperature of 0° C. according to ASTM D256-04, and has an Equivalent Al Thickness of greater than 0.51 mm, when irradiated with 50 kV X-ray radiation, and wherein melt volume rates determined under a load of 1.2 kg at 300° C. (ASTM D1238-04), a melt volume rate measured at a dwell time of 18 minutes increases relative to that measured at 6 minutes by less than or equal to 31%. A method of improving contrast in a polycarbonate composition, and specific articles are also disclosed.

    摘要翻译: 本文公开了包含聚硅氧烷 - 聚碳酸酯,任选的聚碳酸酯和包含原子序数大于或等于22的X射线散射原子的X射线造影剂的制品和热塑性组合物,其中3.2mm厚的制品 根据ASTM D256-04,当在0℃的温度下测量时,由热塑性组合物模制的缺口伊佐德冲击强度大于或等于约620J / m 2,并且具有大于0.51的当量Al厚度 mm,当用50kV X射线辐射照射时,其中在300℃下在1.2kg负荷下测定的熔融体积率(ASTM D1238-04),在18分钟的停留时间测量的熔融体积率相对增加 在6分钟时测量的值小于或等于31%。 还公开了改善聚碳酸酯组合物中的对比度的方法和具体制品。

    Colorimetric indicator of radiation exposure
    5.
    发明授权
    Colorimetric indicator of radiation exposure 有权
    辐射照射的比色指标

    公开(公告)号:US08097668B2

    公开(公告)日:2012-01-17

    申请号:US11845232

    申请日:2007-08-27

    摘要: A colorimetric composition is disclosed comprising a polycarbonate resin, a dye, and a thiopropionate. The composition undergoes an irreversible color shift to a darker color upon exposure to sunlight or UV radiation. Processes for producing and/or using such a colorimetric composition are also disclosed.

    摘要翻译: 公开了一种比色组合物,其包含聚碳酸酯树脂,染料和硫代丙酸酯。 当暴露在阳光或紫外线下时,组合物经历不可逆的色移到较暗的颜色。 还公开了用于生产和/或使用这种比色组合物的方法。

    COLORIMETRIC INDICATOR OF RADIATION EXPOSURE
    7.
    发明申请
    COLORIMETRIC INDICATOR OF RADIATION EXPOSURE 有权
    辐射暴露的彩色指示器

    公开(公告)号:US20090062424A1

    公开(公告)日:2009-03-05

    申请号:US11845232

    申请日:2007-08-27

    摘要: A colorimetric composition is disclosed comprising a polycarbonate resin, a dye, and a thiopropionate. The composition undergoes an irreversible color shift to a darker color upon exposure to sunlight or UV radiation. Processes for producing and/or using such a colorimetric composition are also disclosed.

    摘要翻译: 公开了一种比色组合物,其包含聚碳酸酯树脂,染料和硫代丙酸酯。 当暴露在阳光或紫外线下时,组合物经历不可逆的色移到较暗的颜色。 还公开了用于生产和/或使用这种比色组合物的方法。