申请人:Wella Aktiengesellschaft
公开号:US05061289A1
公开(公告)日:1991-10-29
Composition for the oxidative dyeing of hair based on a combination of developer substances and coupler substances contains, as developer substance, a diaminopyrazol of the general formula (I), ##STR1## wherein R.sup.1, R.sup.2 and R.sup.4 are identical or different and designate hydrogen, alkyl with 1 to 4 carbon atoms, hydroxyalkyl with 2 to 4 carbon atoms, benzyl or phenyl, and R.sup.3 is hydrogen, alkyl with 1 to 4 carbon atoms, hydroxyalkyl with 2 to 4 carbon atoms, with the proviso that the amino groups are in 3,4 or 4,5 position, or its physiologically tolerated, water-soluble salt, new diaminopyrazol derivatives of the above general formula I are also described herein in which R.sup.1 is methyl or benzyl and the R.sup.2 and R.sup.4 are either benzyl, phenyl, hydrogen, alkyl with 1 to 4 carbon atoms or hydroxyalkyl with 2 to 4 carbon atoms and R.sup.3 is either hydrogen, alkyl with 1 to 4 carbon atoms or hydroxylakyl with 2 to 4 carbon atoms. The compounds of formula I are developer substances which are very favorably tolerated physiologically and enable brilliant hair coloring of great depth of color in the red range.
基于开发剂物质和偶联剂物质的组合,用于氧化染发的配方包含,作为开发剂物质,一种通式(I)的二氨基吡唑,其中R1、R2和R4相同或不同,分别代表氢、含有1至4个碳原子的烷基、含有2至4个碳原子的羟基烷基、苄基或苯基,而R3代表氢、含有1至4个碳原子的烷基、含有2至4个碳原子的羟基烷基,但氨基团位于3,4或4,5位置,或其生理上耐受的水溶性盐。此外,本文还描述了上述通式I的新二氨基吡唑衍生物,其中R1为甲基或苄基,R2和R4为苄基、苯基、氢、含有1至4个碳原子的烷基或含有2至4个碳原子的羟基烷基,R3为氢、含有1至4个碳原子的烷基或含有2至4个碳原子的羟基烷基。通式I的化合物是在生理上非常耐受的开发剂物质,能够在红色范围内实现深度明亮的染发效果。