申请人:SEIWA KASEI CO., LTD.
公开号:EP0699431A1
公开(公告)日:1996-03-06
A base material for cosmetics which comprises a silylated peptide of the formual (I):
wherein R¹, R² and R³ are the same or different and each is methyl group or hydroxyl group, R⁴ is a group bonding the terminal amino group in a side chain of a basic amino acid to the α-carbon atom wherein the side chain -R⁴NH₂ may partly form an N-heterocyclic ring, R⁵ is a side chain of an amino acid other than the above basic amino acid, A is methylene, propylene, -CH₂OCH₂CH(OH)CH₂- or -(CH₂)₃OCH₂CH(OH)CH₂- group, m is 0 to 100, n is 0 to 100, and m+n is 1 to 100, provided that m and n only show the number of amino acid units, but not amino acid sequence. The silylated peptide (I) is very useful as an additive for hair and skin cosmetics, particularly for aqueous cosmetics, and have excellent pH and storage stabilities and excellent properties such as gloss and moisture impartment to hairs and skins, improvement of combability of hairs, prevention of hairs from being damaged, restoration of damaged hairs, smoothing skin, and the like.
一种用于化妆品的基质材料,它包含形式为 (I) 的硅烷化肽:
其中,R¹、R² 和 R³ 是相同或不同的基团,每个基团都是甲基或羟基;R⁴ 是将碱性氨基酸侧链中的末端氨基与 α 碳原子结合的基团,其中侧链 -R⁴NH₂ 可部分形成 N-杂环、R⁵ 是上述碱性氨基酸以外的氨基酸侧链,A 是亚甲基、丙烯、-CH₂OCH₂CH(OH)CH₂- 或 -(CH₂)₃OCH₂CH(OH)CH₂- 基团、m 为 0 至 100,n 为 0 至 100,m+n 为 1 至 100,但 m 和 n 仅表示氨基酸单元的数目,而不表示氨基酸序列。硅烷基化肽(I)作为头发和皮肤化妆品的添加剂,尤其是水性化妆品的添加剂非常有用,它具有优异的 pH 值和贮存稳定性,以及诸如头发和皮肤的光泽度和保湿性、改善头发的梳理性、防止头发受损、修复受损头发、平滑皮肤等优异特性。