| 摘要 |
Use of a substituted acylaminopolyorganosiloxane (A) which is a polyorganosiloxane containing substituted acylamino groups linked to Silicon atoms of the polysiloxane skeleton via alkylene bridges or mono- or oligo- [alkylene-amino or alkylene-(substituted acyl)amino]-alkylene bridges, wherein alkylene contains 2-4 carbon atoms and the substituted acylamino groups are at least in part of formula (I) and for the remaining part are selected from substituted acylamino groups of the formulae (ii) and (iii) wherein X1 signifies hydrogen or the group -SO3 -M+, X2 signifies hydrogen or the group -SO3 -M+, with the proviso that one of X1 and X2 is -SO3 -M+ and the other is hydrogen, R signifies C2-6-alkylene or cyclohexylene, and M+ signifies an alkali metal or ammonium cation, and compositions thereof, in the presence of non-ionic or/and anionic surfactants (B), as fat liquoring agents for fat-liquoring of animal hides, skins or pelts before, during or/and after tanning, the fat-liquored, tanned leather or pelt and its use for further processing, and certain substituted acylaminopolyorganosiloxanes (&Agr;'), their production and compositions. |
