SILOXANE COMPOSITIONS INCLUDING METAL-OXIDE NANOPARTICLES SUITABLE FOR FORMING ENCAPSULANTS

摘要

A composition includes an organopolysiloxane component (A) having at least one aryl group and having an average of at least two alkenyl groups per molecule. The composition further includes an organohydrogensiloxane component (B) having at least one of an alkyl group and an aryl group and an average of at least two silicon-bonded hydrogen atoms per molecule. Components (A) and (B) each independently have a number average molecular weight less than or equal to 1500 (g/mole). The composition yet further includes a catalytic amount of a hydrosilylation catalyst component (C), and metal-oxide nanoparticles (D) other than titanium dioxide (TiO2) nanoparticles. The composition has a molar ratio of alkyl groups to aryl groups ranging from 1:0.25 to 1:3.0. A product of the present invention is the reaction product of the composition, which may be used to make a light emitting diode.