Patent ID: 7635748

Claim:
A resin comprising both (1) a phosphorus-containing residue having a bicycloalkyl structure represented by the following general formula (2): wherein l, m and n independently represent an integer of 1 to 4, X represents oxygen, sulfur, selenium or a pair of non-covalent electrons; the substituent R′ is selected from the group consisting of a hydrogen atom, a C1 to C20 aliphatic hydrocarbon group, a C1 to C20 aromatic hydrocarbon group and a halogen atom; and r is an integer of 0 to 4, and (2) a divalent phenol residue represented by the following general formula (1): wherein Rs are independently selected from the group consisting of a hydrogen atom, a C1 to C20 aliphatic hydrocarbon group, a C1 to C20 aromatic hydrocarbon group, a halogen atom and a nitro group; each of p and q is an integer satisfying the equation: p+q=0 to 8; and Y is a group selected from the group consisting of an alkylidene group, a branched chain-containing alkylidene group, a cycloalkylidene group and a branched chain-containing cycloalkylidene group.