| 摘要 |
The use of diquaternary polysiloxanes in detergents for machine dishwashing brings about advantageous effects, especially when the diquaternary polysiloxanes are employed in the rinse cycle. Preferred diquaternary polysiloxanes may be described by the formula I: in which Z is a quaternized nitrogen center, R' and R" independently of one another are a C1-4 alkyl radical or an aryl radical, M is a divalent hydrocarbon radical with at least 4 carbon atoms, which preferably has at least one hydroxyl group and may be interrupted by one or more oxygen atoms and/or groups of the type -C(O)-, -C(O)O- or -C(O)N-, n is a number from 1 to 201, and X- is an organic or inorganic anion.
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