POLYSILOXANES CONTAINING PHENYL SULFONATE GROUPS, THEIR PREPARATION AND THEIR USE

摘要

Phenylenesulfonate group-containing organopolysiloxanes are disclosed consisting of units represented by the formula: (1) in which R1 represents -CH2-CH2- or CH3-CH<, x is equal to a number from 1 to 4 depending on M, and M represents hydrogen or a 1-4 valent metal ion or NH4, and the free valences of the oxygen atoms are saturated by silicon atoms of further groups of formula (1) and/or by cross-linking agents and/or by nonsulfonated phenylene units represented by the formula: (2) A method for the preparation of the phenylenesulfonate group containing organopolysiloxanes, as well as the use of said substances as strongly acidic cation exchangers is also disclosed.