Water-based organopolysiloxane-containing compositions, processes for their preparation and their use

A process for the preparation of an organopolysiloxane containing composition comprising

• i) mixing Q mol of water-soluble aminoalkylalkoxysilanes of formula I
• R-Si (R.sup.1).sub.y (OR.sup.1*).sub.3-y (I)
• with M mol of water-insoluble alkylalkoxysilanes of formula II
• R.sup.2 -Si (OR.sup.1**).sub.3, (II)
• wherein R is an amino-functional organic group of the general formula III
• [Z.sub.(f+c.f*) ].sup.(f+c.f*)- [A.sub.d NH.sub.(2+f-d) -[(CH.sub.2).sub.a -NA.sup.1.sub.e H.sub.(1-e+f*) -].sub.c (CH.sub.2).sub.b -].sup.(f+c.f*)+(III)
• wherein 1.ltoreq.a.ltoreq.6, 1.ltoreq.b.ltoreq.6, 0.ltoreq.c.ltoreq.6, 0.ltoreq.d.ltoreq.2, 0.ltoreq.e.ltoreq.1, 0 .ltoreq.f.ltoreq.1, 0.ltoreq.f*.ltoreq.1, and
• A and A.sup.1 are each independently a benzyl or vinylbenzyl radical, N symbolizes a nitrogen atom and Z is a monovalent inorganic or organic acid radical,
• R.sup.1, R.sup.1* and R.sup.1** are each independently a methyl or ethyl radical;
• and
• R.sup.2 is a linear, cyclic or branched C.sub.1-6 alkyl radical or a ureido-alkyl group of formula IV
• NH.sub.2 -CO-NH-(CH.sub.2).sub.b - (IV)
• where 1.ltoreq.b.ltoreq.6 and 0.ltoreq.y.ltoreq.1,
• in the molar ratio of 0<M/Q ! 2 to form a mixture,
• ii) adding water to said mixture,
• iii) adjusting the pH of said mixture to a value of between 1 and 8;
• and
• iv) removing an alcohol already present and/or formed during a reaction.