UV absorber BAD is prepared with phenol,acetone,and salicylic acid as primary materials.The proper binding about acid agents and the annealed solvent are selected.

• 以苯酚、丙酮、水杨酸为主要原料合成紫外线吸收剂BAD，并选择了合适的缚酸剂、重结晶溶剂.