Patent ID: 7126020

Claim:
A process for preparing viscous organopolysiloxanes, which comprises reacting siloxanes (1) comprising units of the formula A a ⁢ R c ⁡ ( OR 1 ) d ⁢ SiO 4 - ( a + c + d ) 2 ( I ) where A is a monovalent, Si—C-bonded radical containing basic nitrogen, R is a monovalent, optionally substituted hydrocarbon radical having from 1 to 18 carbon atoms per radical, R 1 is a hydrogen atom or an alkyl radical having from 1 to 8 carbon atoms, a is 0 or 1, c is 0, 1, 2 or 3, and d is 0 or 1, with the provisos that the sum of a+c+d is ≦3, on average at least one A radical, and at least one R 1 radical in which R 1 is a hydrogen atom are present per molecule, and optionally siloxanes (2) comprising of units of the formula R c ⁡ ( OR 1 ) d ⁢ SiO 4 - ( c + d ) 2 , ( II ) with the provisos that the sum of c+d is ≦3 and at least one R 1 radical is a hydrogen atom, with silanes (3) of the formula BR e Si(OR 3 ) 3−e (III) where B is a monovalent radical of the formula —CR 2 2 —Y, R 2 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms, Y is a monofunctional radical selected from the group consisting of the halogens, monosubstituted O and S atoms, and substituted N and P atoms, R 3 is an alkyl radical having from 1 to 8 carbon atoms per radical, and e is 0, 1 or 2.