Diffusion beads with core-shell structure
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United States of America Patent
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Jul 21, 2009
Grant Date -
Dec 4, 2008
app pub date -
May 30, 2007
filing date -
May 30, 2007
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Abstract
The diffusion beads according to the present invention have a core-shell structure of multi-layered beads consisting of organic and inorganic materials. The diffusion beads are used for improving functions of conventional organic and inorganic polymer diffusion beads. The structure according to the present invention no only enhances light scattering characteristics of the diffusion beads, but also strengthens the thermal stability and geometric stability thereof.
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