HIGH REFRACTIVE AND TRANSPARENT LED ENCAPSULANT CONTAINING SILOXANE HYBRID RESIN AND CROSSLINGKING AGENT FOR SYNTHESIZING LED ENCAPSULANT

摘要

The present invention relates to an encapsulant for an LED comprising a high refractive index and a highly transparent siloxane hybrid resin, and a crosslinking agent for use in manufacturing the LED encapsulant.The present invention provides an encapsulant for an LED comprising an organic oligosiloxane and a crosslinking agent of an oligohydroxylsiloxane represented by the following formula 1 by a hydrogen silylation reaction in the presence of a metal catalyst, wherein the siloxane hybrid resin has a refractive index of 1.52 or more And an optical transparency of 95% or more, and optimizing the structure of a specific crosslinking agent designed to have excellent heat resistance at a temperature of 200 C for at least 72 hours, thereby providing an encapsulating material for an LED having improved physical properties.Formula 1 Wherein m and n are as defined in the specification.;