申请人:L'Oreal
公开号:US05106611A1
公开(公告)日:1992-04-21
Use of modified diorganopolysiloxanes as antioxidants in cosmetics or in dermatology. Use, as an antioxidizing agent in cosmetics or in dermatology, of diorganopolysiloxanes (i) of formula (I): ##STR1## in which the symbols R denote alkyl or phenyl, B are chosen from the radicals R and A, a an integer chosen between 0 and 200 inclusive, b an integer chosen between 0 and 50 inclusive, and if b is equal to 0, at least one of the two symbols B is A, A is of formula: ##STR2## where: R.sub.1 denotes hydrogen or an alkyl, R.sub.2 denotes hydrogen, hydroxyl, alkyl or alkoxy, R.sub.3 denotes hydrogen, hydroxyl or alkyl, R.sub.4 denotes hydrogen or alkyl, R.sub.5 denotes hydrogen, hydroxyl or alkoxy, Y denotes: (O).sub.n --CH.sub.2 --CH(R.sub.6)--CH.sub.2 -- where R.sub.6 denotes hydrogen or alkyl and n has the value of 0 or 1, or (ii) of formula (II): ##STR3## where c is an integer between 1 and 20 inclusive, d is an integer between 2 and 20 inclusive, and c+d equal to or greater than 3.
在化妆品或皮肤科中,使用改性二有机聚硅氧烷作为抗氧化剂。作为化妆品或皮肤科中的抗氧化剂,使用二有机聚硅氧烷(i)的公式(I):##STR1##其中符号R表示烷基或苯基,B选择自基团R和A,a选择在0和200之间的整数,b选择在0和50之间的整数,如果b等于0,则两个符号B中至少有一个是A,A的公式为:##STR2##其中:R.sub.1表示氢或烷基,R.sub.2表示氢,羟基,烷基或烷氧基,R.sub.3表示氢,羟基或烷基,R.sub.4表示氢或烷基,R.sub.5表示氢,羟基或烷氧基,Y表示:(O).sub.n-CH.sub.2-CH(R.sub.6)-CH.sub.2-其中R.sub.6表示氢或烷基,n的值为0或1,或(ii)的公式(II):##STR3##其中c为1到20之间的整数,d为2到20之间的整数,且c+d等于或大于3。