| 摘要 |
<p>Proposed are biodegradable fabric softeners of increased hydrolytic stability upon storage having as essential constituent a biodegradable quaternary ammonium compound of formula (I), wherein R1 represents an alk(en)yl group having 11-22 carbon atoms, R2 represents an alk(en)yl group having 11-21 carbon atoms, and X- represents an anion. Examples of such quaternary ammonium compounds include: N,N-dimethyl-2-(octadecyl-oxy)-2-oxo-N-(2-[(1-oxohexadecyl)-oxy]ethyl chloride and N,N-dimethyl-2-(H-tallow alkyl-oxy)-2-oxo-N-(2-[1-oxo-H-tallow alkyl)oxy]ethyl chloride.</p> |
