申请人:Wella Aktiengesellschaft
公开号:US05679332A1
公开(公告)日:1997-10-21
The hair shaping composition for permanent shaping of hair contains a cysteine ester of the formula (I): HS--CH.sub.2 --CH(NH.sub.2)--COO--CH.sub.2 --CH.sub.2 --R (I) as a keratin-reducing material, wherein R is a hydroxy group, alkoxy groups, a poly(alkoxy) group or a hydroxypoly(alkoxy) group, or one of its acid additional salts. Cysteine ester compounds and their methods of preparation are also described. Preferred embodiments of the hair shaping composition have a pH of from 4.5 to 9.0 and contain from 4 to 30% by weight of the cysteine ester or its acid addition salt and provide a safe and uniform shaping of hair without allergic or sensitizing reactions.
永久塑形头发的造型组合物包含一种半胱氨酸酯,其化学式为(I):HS--CH.sub.2 --CH(NH.sub.2)--COO--CH.sub.2 --CH.sub.2 --R(I),其中R是一个羟基、烷氧基、聚(烷氧基)基或羟基聚(烷氧基)基,或其酸附加盐之一。还描述了半胱氨酸酯化合物及其制备方法。该造型组合物的首选实施例的pH值为4.5至9.0,含有4至30%的半胱氨酸酯或其酸附加盐,并可安全、均匀地塑造头发,无过敏或致敏反应。