Process for preparing organically modified siloxanes

A compound of the general formula I

• where
• W is hydrogen or methyl,
• m is 0 to 28,
• n is 0 or 1,
• o is 0 to 100,
• A is an oxyalkenyl radical of the general formula Ia
• where
• X radicals independently are identical or different radicals from the group —H, —CH3, —CH2CH3 or -phenyl,
• p is from 0 to 20,
• B if p=1 is a glycerol-derived oxyalkenyl radical, optionally esterified with Rb, of the general formula Ib
• where
• Rb is the acyl radical of linear, branched, saturated or unsaturated carboxylic acids having 2 to 30 carbon atoms and optionally carrying additional hydroxyl groups, or
• B if p=1 is the radical of the general formula Ic
• where
• Y and Z independently of one another are identical or different radicals from the group —H, —CH3, —CH2CH3, —CH2OH or —CH2ORb,
• where
• Rb is defined as above, or
• B if p≧2 is a polyglycerol-derived radical optionally esterified with Rb,
• where
• Rb is defined as above,
• Ra is hydrogen, Ra1 or Ra2,
• where
• Ra1 is a linear or branched, saturated or unsaturated alkyl radical having 1 to 200 carbon atoms which optionally carries hydroxyl groups, optionally carries hydroxyl groups esterified with carboxylic acids and optionally carries amino, alkylamino or dialkylamino groups,
• Ra2 is a radical of the general formula Id
• and
• Rc is a saturated or unsaturated difunctional hydrocarbon radical having 2 to 20 carbon atoms,
• where
• q=0 or 1 provided that n+q=1, and
• if Ra is hydrogen, then q is 0 and o+p≧1.

A compound of the general formula III,

• where
• N a+b+c+d+e+f+2=3 to 850,
• a is 1 to 800,
• c is 0 to 10,
• d is 0 to 10,
• e is 0 to 400, and
• f is 0 to 400, and also the radicals
• R1 independently of one another are identical or different and from the group of saturated or unsaturated, optionally branched alkyl groups having 1 to 30 carbon atoms, alkaryl radicals having 7 to 30 carbon atoms, aryl radicals having 6 to 30 carbon atoms,
• R4 independently of one another are identical or different ester radicals of the general formula IIIa
• with
• r being 1 and
• s being 1 or
• r being 3 and
• s being 0 and
• X independently at each occurrence being identical or different radicals from the group —H, —CH3, —CH2CH3 or phenyl,
• Ra16 being the alkyl radicals of mono-basic fatty acids based on natural vegetable or animal oils having 6 to 30 carbon atoms,
• R5 independently at each occurrence being saturated or unsaturated, optionally branched alkyl groups having 1 to 30 carbon atoms or alkaryl radicals having 7 to 30 carbon atoms, or
• R5 are the radicals of the general formula IIIb
• with
• t being 1 to 28,
• u being 1 to 100,
• E being an oxyalkenyl radical of the general formula Ia,
• v being 0 to 20,
• G if v=1 being a glycerol-derived oxyalkenyl radical of the general formula Ib, or G if v=1 being the radical of the general formula Ic
• with
• Y and Z independently of one another being identical or different radicals from the group —H, —CH3, —CH2CH3 or —CH2OH, or G if v≧2 being a polyglycerol-derived radical,
• R6 independently at each occurrence being R1, R4 or R5, where R1, R4 and R5 are defined as above and R6 being the same as R4 if e=0,
• R7 independently at each occurrence being identical or different radicals of the general formula IIIc
• where
• R1, R4, R5 and R6 are defined as above.