Patent ID: 6576692
Filing Date: 2003-06-10
Classification: C08F,C08L

Abstract:
An epoxy resin composition comprising:an epoxidized block copolymer (E) obtained by epoxidizing a block copolymer (C) comprising a polymer block (A) composed mainly of a vinyl aromatic hydrocarbon compound and a polymer block (B) composed mainly of a conjugated diene compound or a hydrogenation product (D) thereof with a peracid, (E) having a molar ratio (R) of hydroxyl to epoxy groups ranging from 0.001 to 0.1, said molar ratio (R) being represented by the formula: R=[hydroxyl]/[epoxy]wherein [hydroxyl] represents the amount, in terms of the number of moles, of hydroxyl moieties per unit weight of the epoxidized block copolymer and [epoxy] represents the amount, in terms of the number of moles, of epoxy moieties per unit weight of the epoxidized block copolymer, and an epoxy compound, wherein the epoxidized block copolymer (E) is distinct in structure from the epoxy compound, and wherein the epoxy compound is at least one bisphenol A epoxy compound.