Aprepeg for a laminate, comprising a resin composition that comprises at least 10 % by weight of a vinyl compound of formula, a thermosetting resin and/or a thermoplastic resin and a polymer base material, wherein: R 1, R 2, R 3, R 4, R 5, R 6 and R 7 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group, a halogenated alkyl group or a phenyl group, -(O-X-O)- represents a moiety of formula or formula or represents at least two kinds of moieties of formula and/or formula, in which R 8, R 9, R 10, R 14 and R 15 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group and R 11, R 12 and R 13 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, in which R 16, R 17, R 22 and R 23 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, R 18, R 19, R 20 and R 21 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, and A is a linear, branched or cyclic hydrocarbon having 20 or less carbon atoms, -(Y-O)- is a moiety of formula or a random arrangement of at least two kinds of moieties of the formula, in which R 24 and R 25 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group and R 26 and R 27 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, Z is an organic group having at least one carbon atom which may contain an oxygen atom, a nitrogen atom, a sulfur atom or a halogen atom, each of a and b is an integer of 0 to 30, provided that at least one of a and b is not 0, and each of c and d is an integer of 0 or 1. R 1, R 2, R 3, R 4, R 5, R 6 and R 7 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group, a halogenated alkyl group or a phenyl group, -(O-X-O)- represents a moiety of formula or formula or represents at least two kinds of moieties of formula and/or formula, in which R 8, R 9, R 10, R 14 and R 15 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group and R 11, R 12 and R 13 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, in which R 16, R 17, R 22 and R 23 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, R 18, R 19, R 20 and R 21 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, and A is a linear, branched or cyclic hydrocarbon having 20 or less carbon atoms, -(Y-O)- is a moiety of formula or a random arrangement of at least two kinds of moieties of the formula, in which R 24 and R 25 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group and R 26 and R 27 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, Z is an organic group having at least one carbon atom which may contain an oxygen atom, a nitrogen atom, a sulfur atom or a halogen atom, each of a and b is an integer of 0 to 30, provided that at least one of a and b is not 0, and each of c and d is an integer of 0 or 1.