MATERIALS FOR LED ENCAPSULATION

A composite material includes a polysiloxane-containing matrix, a dispersant, and dispersed particles. The polysiloxane-containing matrix has a higher refractive index and a higher surface tension than the dispersant in the non-cured state, is produced using two different silanes, and has aromatic groups and organic groups, the latter of which can be bridged together via a bridging agent. Both of the aromatic groups as well as the bridgable organic groups are bonded to a silicon atom via carbon, and the matrix has a bridging agent with two reactive groups for bridging the organically bridgable groups and a catalyst for a bridging reaction such that the organically bridgable groups are reacted with the bridging agent via an addition reaction in the cured state. The dispersant has either groups which can be organically cross-linked thermally and/or under the effect of light or Si-H groups and (ii) aromatic groups.