atoms r 4 r 5 r 7 are alkyl groups with 1 to 22 carbon atoms or alkenyl groups with 2 to 22 carbon atoms r 6 is u2014 o u2014 or the nr 8 group r 8 being an alkyl or hydroxyalkyl group with 1 to 4 carbon atoms or a hydrogen group z is a bivalent hydrocarbon group with at least 4 carbon atoms which may have a hydroxyl group and may be interrupted by an oxygen atom an amino group or an amide group x is 2 to 4 the r 1 r 2 r 3 r 4 r 5 r 7 may be the same or the different and x u2014 is an inorganic or organic anion including cl u2033 and ch 3 coo u2014 examples of organic quaternary groups include r u2014 n ch3 2 ch 2 ch oh ch2 o u2014 ch 2 3 u2014 ch3coo u2014 wherein r is an alkyl group containing from 1 22 carbons or an benzyl radical and ch3coo u2014 an anion examples of organic betaine include u2014 ch 2 3 u2014 o u2014 ch 2 ch oh ch 2 u2014 n ch3 2 ch 2 coo u2014 such compounds are commercial available betaine polysiloxane copolyol is one of examples it should be understood that cationic polysiloxanes include compounds represented by formula ii wherein r 7 represents other organic amine derivatives including organic primary secondary and tertiary amines other examples of organo modified polysiloxanes include di betaine polysiloxanes and di quaternary polysiloxanes where two betain or quaternary groups are attached to the siloxane chain one type of the di betaine polysiloxane and di quaternary polysiloxane can be represented by the formula wherein the groups r 12 to r.