Sunscreen composition comprising long, branched chain alkyl benzoates or hydroxybenzoates
申请人:The C.P. Hall Company
公开号:EP0848944A2
公开(公告)日:1998-06-24
In one embodiment there is disclosed a sunscreen composition containing a UV-B dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl) -4'-methoxydibenzoylmethane (PARSOL 1789), and a stabilizer/solubilizer for the dibenzoylmethane derivative selected from formula (I) and formula (II), and mixtures thereof:
wherein m = 5, 7, 9 or mixtures
and n = 4, 6, 8 or mixtures;
wherein m = 5, 7 or mixtures
and n = 4, 6 or mixtures.
These long branched chain alkyl hydroxybenzoates and long branched chain benzoates having a C4+ branch at the 2 position are quite effective in stabilizing the dibenzoylmethane derivative UV-B filter compounds making them more effective; effective for longer periods of time.
在一个实施方案中,公开了一种防晒组合物,它含有 UV-B 二苯甲酰甲烷衍生物,如 4-(1,1-二甲基乙基)-4'-甲氧基二苯甲酰甲烷 (PARSOL 1789),以及选自式(I)和式(II)的二苯甲酰甲烷衍生物的稳定剂/增溶剂及其混合物:
其中 m = 5、7、9 或混合物
和 n = 4、6、8 或混合物;
其中 m = 5、7 或混合物
和 n = 4、6 或混合物。
这些长支链烷基羟基苯甲酸酯和在 2 位有 C4+ 支链的长支链苯甲酸酯能有效稳定二苯甲酰甲烷衍生物紫外线-B 过滤化合物,使其更有效;有效时间更长。