Polyurethaneurea resins containing at least one group of the formula (I) --NH(CO)XOR.sup.1O(CO)CHR.sup.2CH.sub.2N[C.sub.nH.sub.2nSi(OR.sup.3).sub.- 3](CO)NH-- (I) and/or at least one group of the formula (II) {--NH(CO)XO}.sub.a{CH.sub.2.dbd.CR.sup.2(CO)O}.sub.bR.sup.4{O(CO)CHR.sup.- 2CH.sub.2N[C.sub.nH.sub.2nSi(OR.sup.3).sub.3](CO)NH--}.sub.c (II) wherein X=[O(CH.sub.2).sub.4].sub.q(OC.sub.2H.sub.4).sub.x(OC.sub.3H.sub.6).sub.y- [(CH.sub.2).sub.5(CO)].sub.z; q=0 to 10; x=0 to 20; y=0 to 20; z=0 to 10; n=2 or 3; a=1 or 2; b=0 to 4; c=1 to 5; R.sup.1=--C.sub.2H.sub.4--, --C.sub.3H.sub.6--, --C.sub.4H.sub.8--, --CH(CH.sub.2O(CO)R.sup.5)CH.sub.2-- or --CH.sub.2CH(O(CO)R.sup.5)CH.sub.2--; R.sup.2=H or CH.sub.3; R.sup.3=C1 to C4 alkyl; R.sup.4=a+b+c-valent, saturated hydrocarbon residue of a (cyclo)alkane polyol with a+b+c hydroxyl groups; R.sup.5=an acid residue of a monocarboxylic acid, with the proviso that a+b+c=3 to 6 and wherein the sequence of the subformulae indicated q, x, y and z may be varied at will and q, x, y and z in each case merely state the number of instances of the particular subformulae contained in the formulae (I) and (II).