申请人:Shibuya Akira
公开号:US20090208439A1
公开(公告)日:2009-08-20
Disclosed is an agent for permanent hair waving that can realize permanent hair waving even in the neutral to weakly acidic pH range in which irritation particularly to the skin is not significant. The agent for permanent hair waving includes at least one heterocyclic mercapto compound represented by formula (1):
wherein R
1
and R
2
each independently represent a hydrogen atom or an optionally substituted alkyl group having 1 to 5 carbon atoms; X represents —O—, —S—, —NH—, or —NR
3
—; R
3
represents an alkyl group having 1 to 5 carbon atoms; n is an integer of 0 to 2; and, when n is 2, group SH may be attached to any carbon atom of an alkylene group having 2 carbon atoms.
本发明公开了一种用于永久性卷发的药剂,可以在中性至微弱酸性pH范围内实现永久性卷发,其中对皮肤的刺激不显著。该永久性卷发药剂包括至少一种由式(1)表示的杂环巯基化合物:其中,R1和R2各自独立表示氢原子或具有1至5个碳原子的可选取代烷基基团;X表示—O—,—S—,—NH—或—NR3—;R3表示具有1至5个碳原子的烷基基团;n为0至2的整数;当n为2时,SH基团可以连接到具有2个碳原子的烷基基团的任何碳原子上。