Alterungsstabile Epoxidharzsysteme, daraus hergestellte Formstoffe und Bauelemente und deren Verwendung

摘要

The invention relates to an epoxy-resin system, in particular for cast-resin applications. Said system comprises a component A, based on a glycidyl ether or glycidyl ester and containing epoxide and a component B, containing an anhydride as the hardener, a sterically hindered amine being added to component A as a stabiliser to prevent ageing of the moulding material. Light-emitting semiconductor components which are cast using said system exhibit an improved resistance to ageing, in particular with regard to the long-term luminosity factor. The epoxy-resin system can also be used for potting and moulding compounds and in mixtures with acrylates for all applications, in particular external applications.