Hydropholic permanent organosilicon compounds

Oxyalkylene group-containing organosilicon compounds (OSiC) comprise units of formula AaRbSiXcO4-(a+b+c)/2 (I), where R = possibly halogenated hydrocarbyl; X = Cl or OR ; R = alkyl, optionally containing ether O; a = 0 or 1; b, c = 0-3; a+b+c = not more than 4; A = a group of formula (II); R = linear, branched, (un)substituted hydrocarbylene, optionally containing ether, amino, sulphide, ester, amide, carbonate, urea or urethane groups; B = X, N(R )2, -OCOR , SR or a group of formula: -N R ÄO-CH(CH3)-CH2ÜdÄOCH2CH2ÜeÄO(CH2)4ÜfOR (III); R = H or R; R = R or a group of formula -COR, -R -N(R )2, -NR R - or -R -N(R )2HX; d, e, f= 0-200; d+e+f = more than 1; and B contains at least one group (III) per polymer molecule. Also claimed are: (1) a process for the production of OSiC; (2) equilibration of OSiC with linear organo-polysiloxanes with triorganosiloxy or hydroxy end groups, cyclic organo-polysiloxanes or copolymers with di-organo- and mono-organo- siloxane units; (3) a process for the treatment of woven textiles, textile fibre preparations and leather treatments using OSiC as above or equilibrated as in (2); (4) organosilicon compounds with units (I) as above in which A = a group (II) with B = Cl, OR , SR , N(R )2 or -OCOR , containing at least one chlorine atom per polymer molecule; and (5) a process for the production of compounds as in (4).