PRODUCTION OF FLUORINE-CONTAINING SILICONE-MODIFIED NOVOLAK RESIN AND EPOXY RESIN COMPOSITION

摘要

PURPOSE:To obtain the subject resin having high glass transition point, giving a cured material having excellent crack resistance and moisture resistance and useful as a sealant for semiconductor, by reacting a novolak resin with a specific fluorine-containing organopolysiloxane and compounding the product with an epoxy resin. CONSTITUTION:The objective fluorine-containing silicone-modified novolak resin can be produced by reacting a novolak resin with a fluorine-containing organopolysiloxane of formula I [R1 is 1-8C alkyl or phenyl; R2 is H, amino, epoxy, hydroxy, halogen or alkoxy; Rf is group of formula II (n is integer of 1-5), formula III, formula IV (m is integer of 3-10), formula V, formula VI (l is integer of 2-6) or formula VII (R is H or methyl); X=0; Y=1 and Z is integer or =1]. An epoxy resin composition having excellent crack resistance is obtained by compounding the above resin with an epoxy resin and a hardener.