以对苯二甲酰异硫氰酸酯和邻苯二胺为原料通过界面缩聚法合成了聚硫脲缓释微胶囊。
Novel controlled releasing polythiourea microcapsules were prepared from terephthaloyl diisothiocyanate and o-phenylenediamine by interfacial polycondensation.
本发明还涉及用有效量的至少一种式（I）二硫杂环戊烷化合物使至少一种二苯甲酰甲烷衍生物对辐射光稳定化的方法。
This invention also relates to a light stabilizing method for at least one dibenzoylmethane derivative with effective amounts of at least one dithiolane compound (I).
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