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.
这款用于永久塑造头发的发型造型配方包含公式(I)的半胱氨酸酯:HS-CH.sub.2-CH(NH.sub.2)-COO-CH.sub.2-CH.sub.2-R(I),其中R为羟基、烷氧基、聚(烷氧基)基或羟基聚(烷氧基)基或其酸性附加盐之一,作为角蛋白还原材料。还描述了半胱氨酸酯化合物及其制备方法。该发型造型配方的优选实施例具有pH值为4.5至9.0,含有4至30重量%的半胱氨酸酯或其酸性附加盐,并提供安全、均匀的头发造型,不会引起过敏或敏感反应。