申请人:Ajinomoto Co., Inc.
公开号:EP0928608A2
公开(公告)日:1999-07-14
An N-long-chain acyl neutral amino acid ester containing a straight-chain or branched-chain, saturated or unsaturated acyl group having from 6 to 22 carbon atoms, where the hydrocarbon group of the alcohol constituting the ester is a straight-chain or branched-chain, saturated or unsaturated hydrocarbon group having from 1 to 10 carbon atoms disclosed herein is an oily material suitable for cosmetic compositions, which provide an excellent feeling upon use and also an excellent hair conditioning effect to a cosmetic composition containing the same.
Further, an ultraviolet ray-absorbing composition characterized by containing, as active ingredients, an ultraviolet ray absorbent, and the above-mentioned N-long-chain acyl neutral amino acid ester or/and an N-long-chain acyl acidic amino acid diester containing a straight-chain or branched-chain, saturated or unsaturated acyl group having from 6 to 22 carbon atoms, where the hydrocarbon group of the alcohol constituting the ester is a straight-chain or branched-chain, saturated or unsaturated hydrocarbon group having from 1 to 10 carbon atoms is an ultraviolet ray-absorbing composition which stabilizes the sparingly-soluble ultraviolet ray absorbent contained therein, and which is also excellent in feeling.
Still further, an inorganic pigment composition characterized by containing, as active ingredients, an inorganic pigment and the above-mentioned N-long-chain acyl neutral amino acid ester or/and the above-mentioned N-long-chain acyl acidic amino acid diester is an inorganic pigment composition which is excellent in the dispersion (stability) of the inorganic pigment, which is less irritative to the skin, and which is also excellent in a feeling upon use because of lack of stickiness or the like.
本发明公开了一种含有直链或支链、饱和或不饱和酰基(具有 6 至 22 个碳原子)的 N-长链酰基中性氨基酸酯,其中构成该酯的醇的烃基是直链或支链、饱和或不饱和烃基(具有 1 至 10 个碳原子),是一种适用于化妆品组合物的油性材料,使用时可提供极佳的触感,对含有该材料的化妆品组合物也具有极佳的头发护理效果。
此外,一种紫外线吸收组合物,其特征在于,作为活性成分,含有紫外线吸收剂和上述 N-长链酰基中性氨基酸酯或/和 N-长链酰基酸性氨基酸二酯,其中 N-长链酰基酸性氨基酸二酯含有直链或支链、具有 6 至 22 个碳原子的饱和或不饱和酰基、其中构成酯的醇的烃基是具有 1 至 10 个碳原子的直链或支链、饱和或不饱和烃基的紫外线吸收组合物,这种紫外线吸收组合物可以稳定其中所含的少溶性紫外线吸收剂,而且具有良好的手感。
此外,一种无机颜料组合物,其特征在于作为有效成分含有无机颜料和上述 N-长链酰基中性氨基酸酯或/和上述 N-长链酰基酸性氨基酸二酯,是一种无机颜料组合物,该无机颜料组合物在无机颜料的分散性(稳定性)方面非常出色,对皮肤的刺激性较小,并且由于没有粘性等,使用时的感觉也非常出色。