PROBLEM TO BE SOLVED: To provide a detergent composition that has conditioning effect, and shows improvements in foaming, foam volume, and foam quality.SOLUTION: A polyaspartic acid derivative has a repeating unit represented by formula (1), where R1 is H, or a C1-6 hydrocarbon group, R2 is a C1-24 hydrocarbon group, R3 and R4 are H, or a C1-24 hydrocarbon group, R5 is -R-CO2-].SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】コンディショニング効果を有し、かつ泡立ち、泡量、泡質を改善し洗浄剤組成物の提供。【解決手段】式(1)で代表される繰り返し単位を有するポリアスパラギン酸誘導体。〔式中、R1はH、又はC1~6の炭化水素基、R2はC1~24の炭化水素基、R3及びR4はH、又はC1~24の炭化水素基、R5は-R-CO2-〕【選択図】なし
