A method for the preparation of emulsions of organopolysiloxanes which are highly viscous

摘要

A method for the preparation of emulsions highly viscous organopolysiloxanes, characterized in that, siloxanes, selected from the group of siloxanes (1), of units of the general formula # # str1 # # where a is a monovalent, si - c bound radical containing basic nitrogen, r is a monovalent, optionally substituted hydrocarbon radical having 1 to 18 carbon atoms per radical, r¹ a hydrogen atom or an alkyl radical having 1 to 8 carbon atoms, a 0 or 1, c 0, 1, 2 or 3, and d is 0 or 1, with the proviso that the sum a + c + d ≦ 3, and an average of at least one radical a and at least one radical r¹ in the meaning of r¹ equal to hydrogen atom is present per molecule, siloxanes (2) of units of the general formula # # str1 # # where r, r¹, c and d have the meaning given above, with the proviso that the sum of c + d ≦ 3, and at least one radical r¹ in the meaning of r¹ equal to hydrogen atom per molecule, and the mixtures of siloxanes (1) and (2), with silanes (3) of the general formula # # str1 # # B is a monovalent radical of the formula - cr²₂-Y, r² a hydrogen atom or an alkyl radical having 1 to 4 carbon atoms, y is a monofunctional hetero atom selected from the group consisting of the halogens, the monosubstituted atoms o and s and of the substituted atoms n and p, r³ an alkyl radical having 1 to 8 carbon atoms per radical and e 0, 1 or 2, in the presence of ..