Patent ID: 8349911

Claim:
A process for preparing a composition comprising functionalized silanes or functionalized siloxanes, or mixtures thereof; wherein said process comprises: reacting one or more aminosilanes with at least one acid comprising carbon double bonds, and water in a presence of a photoinitiator in an amount of 0.01% to 2% by weight, wherein the one or more aminosilanes are represented by formula I A m SiY n (I), in which A is a substituted or unsubstituted aminoalkyl group, a substituted or unsubstituted diaminodialkyl group or a substituted or unsubstituted triaminotrialkyl group, the groups Y are alike or different and Y is OH, ONa, OK, OR′, OCOR′, OSiR′ 3 , Cl, Br, I or NR′ 2 , m is 1 or 2 and n is 1, 2 or 3, with the proviso that m+n=4, the group R′ independently being hydrogen, linear or branched alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl or heteroaryl groups, each having 1 to 18 C atoms and each being optionally substituted.