SOLUTION COMPRISING ORGANOFUNCTIONAL ALKALI SILICONATES, SILICATES AND METHOD OF PRODUCTION THEREOF

摘要

The invention relates to a method for producing a solution comprising organofunctional siliconates, silicates and, optionally, the cocondensation products thereof, and to the solutions and an installation for the production thereof.

主权项

1. A method of preparing a solution comprising an organofunctional alkali siliconate, an organofunctional alkali silicate and optionally a co-condensation product thereof, the method comprising:
preparing a mixture comprising an organofunctional silane of formula I:
(R1)xSiHal(y-x)  (I), with a halosilane of formula II:
Si(Hal)4  (II), an alcohol, and optionally water, to obtain a reacted mixture, wherein
R1 is independently an organofunctional residue,Hal is a hydrolysable residue, which is independently chlorine or bromine,x is 1 or 2, andy is 4; and introducing the reacted mixture in the presence of inert gas into an aqueous alkali hydroxide solution, wherein the inert gas is supplied so that it introduces a portion of the reacted mixture directly into the aqueous alkaline solution.