HYBRID SILICONE COMPOSITION FOR LIGHT EMITTING DEVICE

• Main Authors: GILLISSEN, STIJN, DUNEKAKE, RALF, PLANTENBERG, THOMAS, ZHOU, JING, LEYSSENS, KAREN, BORQUE, LETICIA
• Format: Patent
• Language: English; French; German
• Published: 15.04.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP

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.