NAPHTHALENE-FORMALDEHYDE RESIN, NAPHTHALENE-FORMALDEHYDE RESIN WITH BONDS FORMED BY DEACETALIZATION, 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.