Phosphorous-containing flame retarding epoxy resin and an epoxy resin composition containing the same

摘要

The present invention relates to a phosphorous-containing flame retarding epoxy resin and their composition comprising the nitrogen-containing flame retarding epoxy resin. More specifically, the present invention relates to a flame retarding epoxy resin having a pendent phosphorous-containing functional group and their composition comprising the nitrogen-containing flame retarding epoxy resin. The flame retarding phosphorous-containing epoxy resin and the epoxy resin composition containing the same of the present invention possess excellent flame retarding property and heat resistance without containing halogen and diantimony trioxide. Therefore they are useful as an encapsulating material in the semiconductor industry and the cured article prepared from the composition exhibits excellent molding ability and excellent reliance.