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    • 3. 发明授权
    • Light-reflecting molded articles and methods of making the same
    • 光反射成型品及其制造方法
    • US06607794B1
    • 2003-08-19
    • US09238827
    • 1999-01-28
    • John Colvin WilsonLawrence Wayne Shacklette
    • John Colvin WilsonLawrence Wayne Shacklette
    • F21V700
    • C08K5/02C08K3/22C08K3/2279C08K5/06F21V5/043F21V7/22F21Y2103/00G02B6/001G02B6/0031G03B27/542H04N1/02815H04N1/0285H04N1/02855H04N1/0286H04N1/0287H04N1/02895Y10T428/13Y10T428/1314Y10T428/1372C08L55/02
    • A light-reflecting article having an average total reflectivity of at least about 93%, e.g., at least about 95%, for light in a 400 to 700 nanometer wavelength range comprises a thermoplastic or thermoset polymer matrix, such as an acrylonitrile-butadiene-styrene-based matrix, in which is dispersed reflective filler particles such as rutile titania and a flame-retardant material. The flame-retardant material may contain a particulate metal oxide synergist, e.g., antimony trioxide or antimony pentoxide, and a quencher such as a brominated organic compound, e.g., bis(tribromophenoxy)ethane. The polymer matrix and filler may be selected so that their respective refractive indices and the size range of the filler particles satisfies a mathematical relationship having as a function thereof the mean freespace (vacuum) wavelength of the light range being reflected. The article may comprise a light-reflecting enclosure (14) of an illumination source (10), the enclosure (14) having at least one linear aperture (16) formed therein and enclosing a linear light source (12).
    • 对于400至700纳米波长范围的光,平均总反射率为至少约93%,例如至少约95%的光反射制品包括热塑性或热固性聚合物基质,例如丙烯腈 - 丁二烯 - 基于苯乙烯的基质,其中分散的反射填料颗粒如金红石型二氧化钛和阻燃材料。 阻燃材料可以含有颗粒状金属氧化物增效剂,例如三氧化锑或五氧化二锑,以及猝灭剂如溴化有机化合物,例如双(三溴苯氧基)乙烷。 可以选择聚合物基质和填料,使得其各自的折射率和填料颗粒的尺寸范围满足作为其反射的光范围的平均释放空间(真空)波长的函数的数学关系。 物品可以包括照明源(10)的光反射罩(14),所述外壳(14)具有形成在其中的至少一个线性孔(16)并且包围线性光源(12)。