Patent ID: 7524613

Claim:
Phosphono-substituted siloxane obtainable by reacting (a) an organosilicon compound of the general formula (I) wherein R 1 is selected from a hydrogen atom, a hydroxy group, a linear or branched C 1 -C 20 alkyl, linear or branched C 2 -C 20 alkenyl, linear or branched C 1 -C 20 alkoxy, linear or branched C 2 -C 20 alkinyl, aryl, arylalkyl, alkylaryl, arylalkenyl, alkenylaryl, arylalkinyl, alkinylaryl, acyloxy group and a group —CHR 6 —PO 3 H 2 , R 2 and R 3 are independently selected from a hydrogen atom, a linear or branched C 1 -C 20 alkyl, linear or branched C 2 -C 20 alkenyl, linear or branched C 2 -C 20 alkinyl, aryl, arylalkyl, alkylaryl, arylalkenyl, alkenylaryl, arylalkinyl, and alkinylaryl group, R 4 is selected from a hydrogen atom, a linear or branched C 1 -C 20 alkyl, linear or branched C 2 -C 20 alkenyl, linear or branched C 2 -C 20 alkinyl, aryl, arylalkyl, alkylaryl, arylalkenyl, alkenylaryl, arylalkinyl, alkinylaryl group and the group —CHR 6 —PO 3 H 2 , R 5 is selected from a hydrogen atom, a linear or branched C 1 -C 20 alkyl, linear or branched C 2 -C 20 alkenyl, linear or branched C 2 -C 20 alkinyl, aryl, arylalkyl, alkylaryl, arylalkenyl, alkenylaryl, arylalkinyl, alkinylaryl group and the group —CHR 6 —PO 3 H 2 , Z represents —(CR 6 R 7 )x- or arylene, R 6 and R 7 are independently selected from a hydrogen atom, a linear or branched C 1 -C 6 alkyl, linear or branched C 2 -C 6 alkenyl, linear or branched C 2 -C 6 alkinyl, aryl, arylalkyl, alkylaryl, arylalkenyl, alkenylaryl, arylalkinyl and alkinylaryl group, n is an average value and has a value from 1 to 200 and x is an integer from 1 to 100; and (b) a siloxane of the general formula (II) wherein Z 1 represents a spacer or a single bond, R 8 , R 9 and R 10 are independently selected from H, OH, alkyl, alkenyl, alkinyl, aryl, alkylaryl, aralkyl, aralkenyl, alkenylaryl, aralkinyl, alkinylaryl, acyloxy and alkoxy, with the proviso that at least one of the groups R 8 , R 9 and R 10 is an alkoxy, acyloxy or OH group, and represents one or more functional groups selected from free-radical polymerizable groups, non-ionic hydrophilic groups, basic groups and combinations thereof.