Patent ID: 6943219

Claim:
An epoxy resin composition which comprises a vinyl polymer having a group represented by the following general formula (1) at a main chain terminus thereof: wherein, R 1 , R 2 and R 3 are the same or different and each represents a hydrogen atom, a monovalent hydrocarbon group containing 1 to 10 carbon atoms or a monovalent group containing 1 to 10 carbon atoms as derived from two hydrocarbon groups by being bound together via an ether bond or ester bond, and R 1 and R 2 or R 2 and R 3 may be combined together at respective other termini to form a cyclic structure; wherein the vinyl polymer having a group represented by the general formula (1) at a main chain terminus thereof is obtained by reacting a reactive functional group of a vinyl polymer having the reactive functional group at a main chain terminus thereof with a compound represented by the following general formula (2): wherein R 1 , R 2 and R 3 are defined as above, R 4 and R 5 are the same or different and each represents a hydrogen atom, a monovalent hydrocarbon group containing 1 to 10 carbon atoms or a monovalent group containing 1 to 10 carbon atoms as derived from two hydrocarbon groups by being bound together via an ether bond or ester bond and X represents a chlorine, bromine or iodine atom; and wherein the reactive functional group is a phenolic hydroxyl group.