The reaction of phenol, xylene—formaldehyde resin with boric acid gets an acetal resin.
苯酚、二甲苯缩甲醛树脂及硼酸反应生成缩醛树脂。
2
METHOD AB 8 resin was treated with alcohol and propanone and the extract was detected for the content of the residues of benzene, methylbenzene, xylene and styrene.