Method of producing sulphonic organosilicon compounds and corresponding aqueous solutions

Abstract From the Canadian patent

A method of producing 0.01 to 70 wt. % aqueous solutions of sulfonated organosilicon compounds having the formula (HO)3Si-R1-SO3-X M x+ (I), or oligomeric siloxane derivatives thereof condensed via, oxygen bridges. The solution optionally also contains compounds of formula (III) e.g. Si(OH)4 or Al-(OH)3 or the, like, or derivatives thereof condensed via oxygen bridges. The ratio of Si atoms of formula (I) to the sum of Si and/or Al atoms of formula (III) is 1:0 to 1:3 and the total, concentration of compounds (I)+(III) is 0.01 to 70 wt. %. The starting material for the method is a polymeric di-, tri-, or tetrasulfane compound made up of units having the formula:, (see fig. I), wherein R1 …