| 摘要 |
<p>A fabric softening composition comprising a compound of formula (I), in which R?1, R2 and R3¿ are independently selected from C¿1?-C4 alkyl groups or C2-C4 alkenyl groups, a is from 1 to 4, X?-¿ is a compatible anion and R?4 and R5¿ are independently selected from C¿12?-C22 alkyl or alkenyl groups, the sum of the chain lengths of R?4 and R5¿ preferably being at least 30.</p> |
