Patent ID: 7825206

Claim:
A process for reacting polyorganosiloxanes which contain ≡Si(H) units and are of the general formula (I) in which at least one hydrogen atom is bonded to a silicon atom, R represents one or more identical or different radicals selected from linear or branched, saturated, monounsaturated or polyunsaturated alkyl, aryl, alkaryl or aralkyl radicals having from 1 to 20, haloalkyl groups having from 1 to 20 carbon atoms, siloxy groups and triorganosiloxy groups, R′ and R″ are each independently H or R, x is an integer from 0 to 300, y is an integer from 0 to 100, with at least one alcohol which is selected from the group of the linear or branched, saturated, monounsaturated or polyunsaturated, aromatic, aliphatic-aromatic mono- or polyalcohols, polyether monoalcohols or polyether polyalcohols, aminoalcohols, mono- or poly(meth)acrylated monoalkoxylates or polyalkoxylates, hydroxyalkyl methacrylates, hydroxyalkyl acrylates, halogenated mono- or polyalcohols, polyester monoalcohols, polyester polyalcohols, fluorinated or perfluorinated monoalkoxylates or polyalkoxylates and mixtures thereof, with a stoichiometric excess of polyorganosiloxanes which contain ≡Si(H) units and are of the general formula (I) in the presence of one or more element compounds of main group III and/or transition group 3 as a catalyst, wherein the reaction, on completion of conversion of the alcohol component, is continued in the presence of one or more element compounds of main group III and/or transition group 3 as a catalyst until no further ≡Si—H groups can be detected by gas volumetric means.