| 摘要 |
A polymer for use in a composition or method of laundry treatment is a copolymer of:(a) one or more anionic monomer units;(b) one or more cationic monomer units; and(c) optionally, one or more uncharged monomer units;wherein, the number ratio of the total of all negative charges on the anionic monomer unit(s) to the total of all positive charges on the cationic monomer unit(s) is from 10:1 to 3:1, especially from 17:3 to 3:1. |
