| 摘要 |
The present invention relates to a nitrogen-containing epoxy resin of the following formula: wherein R's are the same or different and each represents a hydrogen atom or -R13-C6-10 aryl-(OR14)p, and the aryl group is optionally substituted with C1-6 alkyl group, in which R13 represents a C1-6 alkylene group or a phenylene-CH2- group optionally substituted with a hydroxy group, R14 represents a glycidyl group, and p is an interger of 1 or 2, provided that at least one R group is not a hydrogen atom; R1 represents a phenyl group or -N(R)2 group in which R is defined as above; which is produced from reacting melamime derivatives sequential with aldehydes, phenolic compound and epihalohydrin. The present invention further relates to a flame retarding epoxy resin composition comprising the above nitrogen-containing epoxy resin. The flame retarding nitrogen-containing epoxy resin and the epoxy resin composition containing the same of the present invention possess excellent flame retardance 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.
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