Hybrid silicone composition for light emitting device

A silicon-based curable composition providing improved transparency, mechanical strength and resistance against heat and photo-degradation comprises at least one organopolysiloxane represented by the composition formula (1): (R13SiO1/2)a(R12SiO2/2)b(R1R2SiO2/2)c(R1SiO3/2)d(R2SiO3/2)e(R12R2SiO1/2)f  ...

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Bibliographic Details
Main Authors LEYSSENS KAREN, BORQUE LETICIA, DUNEKAKE RALF, PLANTENBERG THOMAS, J ZHOU, GILLISSEN STIJN
Format Patent
LanguageEnglish
Published 17.06.2015
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A silicon-based curable composition providing improved transparency, mechanical strength and resistance against heat and photo-degradation comprises at least one organopolysiloxane represented by the composition formula (1): (R13SiO1/2)a(R12SiO2/2)b(R1R2SiO2/2)c(R1SiO3/2)d(R2SiO3/2)e(R12R2SiO1/2)f  (1), wherein each R2 independently represents a methacryloxyalkyl group having 5 to 20 carbon atoms and a 0, b 0, c 0, d 0, e 0, f 0, c+e>0, and a+b+c+d+e+f=1; and at least one curing catalyst. The product is ideal for encapsulation of LED (light emitting device) elements.
Bibliography:Application Number: CN201080069633