強酸媒体中のアニリンホルムアルデヒド樹脂（PH<4), when="" the="" molar="" ratio="" of="" aniline="" to="" formaldehyde="" is="" 1:1="" or="" the="" formaldehyde="" is="" slightly="" excessive,="" p-aminobenzaldehyde="" will="" be="" generated,="" and="" it="" can="" be="" converted="" into="" p-methylene="" cycloaniline,="" resin="" can="" be="" formed="" when="">
