Naphthalene formaldehyde resin, deacetalized naphthalene formaldehyde resin, and modified naphthalene formaldehyde resin

摘要

Provided are a naphthalene formaldehyde resin obtained by reacting a compound (A) represented by formula (1) and formaldehyde (B) in a molar ratio, (A):(B), of 1:1 to 1:20 in the presence of an acidic catalyst, and a deacetalized naphthalene formaldehyde resin and a modified naphthalene formaldehyde resin derived therefrom.