Curable Silicone Composition, And Semiconductor Sealing Material And Optical Semiconductor Device Using The Same
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United States of America Patent
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Issued Date -
Sep 10, 2015
app pub date -
Sep 20, 2013
filing date -
Sep 21, 2012
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Abandoned
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Abstract
A curable silicone composition comprising: an organopolysiloxane represented by the average unit formula: (R13—SiO1/2)a(R12SiO2/2)b(R2SiO3/2)c(SiO4/2)d (wherein the R1 moieties are alkyl groups, alkenyl groups, phenyl groups, or hydrogen atoms; the R2 moieties are groups represented by R1, condensed polycyclic aromatic groups, or groups including a condensed polycyclic aromatic group, provided that at least one of the R1 and R2 moieties in the molecule is an alkenyl group or hydrogen atom and at least one R2 moiety in the molecule is a condensed polycyclic aromatic group or a group having a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying the relationship: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1); and metal oxide microparticles with an average particle size of at most 500 nm and a refractive index of at least 1.55.
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