Transparent plastic article
    1.
    发明授权
    Transparent plastic article 有权
    透明塑料制品

    公开(公告)号:US09546269B2

    公开(公告)日:2017-01-17

    申请号:US14423430

    申请日:2013-08-21

    Abstract: A plastic article is described having a thickness of 0.5 mm to 5 mm, comprising a polycarbonate thermoplastic composition including polycarbonates containing phthalimidine carbonate units, said composition providing a heat deflection temperature of at least 145° C., a light transmittance of at least 85%, and CIE 1976 L*, a*, b* values of L* greater than 92, a* between −1.5 and 1.5, and b* between −2.0 and 3.0, when tested in the form of a 3.2 mm thick test sample molded at 580° F. (304° C.) with a 1.7 minute residence time, using CIE illuminant C and 2 degree observer.

    Abstract translation: 描述了厚度为0.5mm至5mm的塑料制品,其包含聚碳酸酯热塑性组合物,所述聚碳酸酯热塑性组合物包含含有酞嗪酸酯单元的聚碳酸酯,所述组合物提供至少145℃的热变形温度,至少85%的透光率, 和CIE 1976 L *,a *,b *值大于92,a *在-1.5和1.5之间,b *在-2.0和3.0之间,当以3.2mm厚的测试样品的形式测试时 在580°F(304℃)下,使用CIE光源C和2度观察器,停留时间为1.7分钟。

    Method for Determining Degradation of Thermoplastics
    2.
    发明申请
    Method for Determining Degradation of Thermoplastics 有权
    确定热塑性塑料退化的方法

    公开(公告)号:US20140204381A1

    公开(公告)日:2014-07-24

    申请号:US14159579

    申请日:2014-01-21

    Abstract: A method of determining degradation of a thermoplastic when exposed to light and heat includes illuminating the thermoplastic with a desired wavelength of light at a desired irradiance while maintaining the ambient air surrounding the thermoplastic at a desired temperature. The method is useful to measure the discoloration rate of transparent, translucent and opaque thermoplastics such as polycarbonates, the discoloration rate being determined by transmission or reflectance spectra of transmitted or reflected white light through or from the thermoplastic.

    Abstract translation: 当暴露于光和热时,确定热塑性塑料的降解的方法包括以期望的辐照度以期望的光线照射所需的光纤,同时将包围热塑性塑料的环境空气保持在期望的温度。 该方法可用于测量透明,半透明和不透明热塑性塑料如聚碳酸酯的变色率,变色速率由通过或来自热塑性材料的透射或反射白光的透射或反射光谱确定。

    TRANSPARENT PLASTIC ARTICLE
    4.
    发明申请
    TRANSPARENT PLASTIC ARTICLE 有权
    透明塑料制品

    公开(公告)号:US20150299460A1

    公开(公告)日:2015-10-22

    申请号:US14423430

    申请日:2013-08-21

    Abstract: A plastic article is described having a thickness of 0.5 mm to 5 mm, comprising a polycarbonate thermoplastic composition including polycarbonates containing phthalimidine carbonate units, said composition providing a heat deflection temperature of at least 145° C., a light transmittance of at least 85%, and CIE 1976 L*, a*, b* values of L* greater than 92, a* between −1.5 and 1.5, and b* between −2.0 and 3.0, when tested in the form of a 3.2 mm thick test sample molded at 580° F. (304° C.) with a 1.7 minute residence time, using CIE illuminant C and 2 degree observer.

    Abstract translation: 描述了厚度为0.5mm至5mm的塑料制品,其包含聚碳酸酯热塑性组合物,所述聚碳酸酯热塑性组合物包含含有酞嗪酸酯单元的聚碳酸酯,所述组合物提供至少145℃的热变形温度,至少85%的透光率, 和CIE 1976 L *,a *,b *值大于92,a *在-1.5和1.5之间,b *在-2.0和3.0之间,当以3.2mm厚的测试样品的形式测试时 在580°F(304℃)下,使用CIE光源C和2度观察器,停留时间为1.7分钟。

    LIGHT EMITTING DIODE DEVICES, METHOD OF MANUFACTURE, USES THEREOF
    5.
    发明申请
    LIGHT EMITTING DIODE DEVICES, METHOD OF MANUFACTURE, USES THEREOF 有权
    发光二极管器件,其制造方法,其使用

    公开(公告)号:US20140117393A1

    公开(公告)日:2014-05-01

    申请号:US14063042

    申请日:2013-10-25

    CPC classification number: B29D11/0074 C08K5/357 H01L33/501 H01L33/56 C08L69/00

    Abstract: A light emitting diode lighting device contains a light emitting diode and a lighting device component, wherein the device component comprises a polycarbonate composition comprising a bisphenol A polycarbonate; and 2,2′-(1,4-phenylene)bis(4H-3,1-benzoxazin-4-one) in an amount effective to provide a composition wherein a molded sample of the composition has a UL94 rating of V-2 or better at a thickness of 0.9 mm; an absorbance of less than 2 a.u. in the region of 370 to 380 nanometers; and an increase in yellowness index (ΔYI) of 12 or less at 2.5 mm thickness after heat aging at 130° C. for 5,000 hours.

    Abstract translation: 发光二极管照明装置包含发光二极管和照明装置部件,其中装置部件包括包含双酚A聚碳酸酯的聚碳酸酯组合物; 和2,2' - (1,4-亚苯基)双(4H-3,1-苯并恶嗪-4-酮),其量可以有效地提供组合物,其中组合物的模塑样品的UL94等级为V-2 或更好的厚度为0.9mm; 吸光度小于2 a.u. 在370〜380纳米的区域; 并且在130℃下热老化5000小时后,2.5mm厚度的黄度指数(&Dgr; YI)增加12或更小。

Patent Agency Ranking