prov:value
| - An aliphatic radical R or R' in formula I can also be a polysiloxane radical of the formula ##STR5## in which R16 and R17 are C1 -C6 -alkyl, in particular methyl, or phenyl, R20 is cycloalkylene, for example cyclohexylene, or, in particular, C1 -C12 -alkylene, especially C1 -C6 -alkylene, for example 1,3-propylene or 1,4-butylene, x is a rational number of at least 1, for example 1 to 100, prefera
|