申请人:GIVAUDAN-ROURE (INTERNATIONAL) S.A.
公开号:EP0305059A2
公开(公告)日:1989-03-01
Organosilicon compounds having at least one unit of the general formula
in which R represents alkyl, R′ is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of 0, 1, 2 or 3 and c is 0 or 1, wherein at least one of Z and R′ is linked to the multivalent aryl group via an ether linkage, are useful for absorbing UV radiation. Especially if polymeric (with e.g. diorganosiloxane units) they can be incorporated in sunscreen preparations to improve their substantivity to the skin. A process for preparing the compounds is also disclosed.
具有至少一个通式单元的有机硅化合物
其中 R 代表烷基,R′是二价亚烷基、氧烷基、烯基或氧烯基,Z 代表烷基、烷氧基或羟基,a 的值为 0、1、2 或 3,c 为 0 或 1,其中 Z 和 R′中至少有一个通过醚键与多价芳基相连。尤其是聚合型化合物(如二芳基硅氧烷单元),可以加入防晒制剂中以提高其对皮肤的吸附性。此外,还公开了制备这些化合物的工艺。