申请人:Kao Corporation
公开号:US05505936A1
公开(公告)日:1996-04-09
Phosphoric diesters having formula (1): ##STR1## wherein R.sup.1 is an acyl group having at least one phenyl group; R.sup.2 is a C.sub.2-12 linear or branched alkylene group which may optionally be inserted with an oxygen atom between carbon atoms thereof; L is a C.sub.2-40 linear or branched alkyl group which may optionally be inserted with an oxygen atom between carbon atoms thereof or the group R.sup.1 -O-R.sup.2 ; M is a hydrogen atom, an alkali metal ion, a metal ion of di- or higher valence, an ammonium group, an alkanolammonium group having 2 to 14 carbon atoms, C.sub.1-14 alkylammonium group; and n is the valence of M are useful UV absorbing compounds. The phosphoric diesters remain on the skin for long periods of time and exhibit lasting UV shielding effects. The compounds and the cosmetic compositions containing the compounds are very safe to the skin.
具有式(1)的磷酸二酯:##STR1## 其中R.sup.1是至少有一个苯基的酰基;R.sup.2是C.sub.2-12线性或支链烷基,其可以在碳原子之间插入一个氧原子;L是C.sub.2-40线性或支链烷基,其可以在碳原子之间插入一个氧原子或R.sup.1-O-R.sup.2基团;M是氢原子,碱金属离子,二价或更高价的金属离子,铵基,具有2至14个碳原子的烷基醇铵基团,C.sub.1-14烷基铵基团;n是M的价数,是有用的UV吸收化合物。磷酸二酯可以长时间停留在皮肤上,并表现出持久的UV屏蔽效果。这些化合物和含有这些化合物的化妆品组合物对皮肤非常安全。