Zwitterionic polysiloxanes

A polysiloxane of general formula A

• wherein
• R1 is independently of each other
• methyl,
• with the proviso that in formula A at least one R1 corresponds to one of formulae II-V,
• R2 is independently of each other
• R3 is independently of each other
• or a zwitterionic group selected from
• with the proviso that at least one R3 in formula A is a zwitterionic group,
• R4 is independently of each other an unbranched or branched C1-7-alkylene, preferably an unbranched C1-5-alkylene, particularly preferably —(CH2)2—,
• R5 is independently of each other a branched or unbranched C1-18-alkyl, preferably an unbranched C1-8-alkyl, particularly preferably methyl,
• R6 is independently of each other an unbranched C2-s-alkylene, preferably
• —(CH2)2— or —(CH2)3—,
• R7 is independently of each other an unbranched or branched C1-18-alkylene, preferably an unbranched C1-8-alkylene, particularly preferably —(CH2)2— or methylene,
• R8 is independently H or OH,
• R9 is independently of each other an unbranched or branched C1-18-alkylene, preferably an unbranched C1-8-alkylene, particularly preferably methylene,
• R11 is independently of each other
• R12 is independently of each other
• R13 is independently of each other an aliphatic or cyclic C1-18-alkylene or arylene, in each case optionally substituted by C1-8-alkyl or benzyl, preferably unbranched C1-8-alkylene, in particular —(CH2)4—, —(CH2)6—,
• n is an integer from 20-2,000, preferably 40-1,000, particularly preferably 40-180, and
• m is 0 or an integer greater than 0, preferably 0 or 1-2,000, more preferably 0 or 1-55.