Heterocyclic nitrogen containing siloxanes

A cationic bis(trimethylsiloxy) siloxane having the formula MD.sub.s 'M wherein M is a trimethylsiloxy unit, Me.sub.3 SiO.sub.1/2,x is an integer of 1 to 3 and D' is a cationic difunctional unit having the formula:

• ##STR12## wherein R.degree. is a divalent organic group, free of aliphatic unsaturation and having 2 to 18 carbon atoms, selected from the class consising of divalent hydrocarbon groups and hydroxy-substituted divalent hydrocarbon groups;
• R is selected from the class consisting of methyl and ethyl;
• R.sub.2 N is an organic heterocyclic radical selected from the group consisting of morpholinium, piperdinum, pyrrolium, and piperazinium, said heterocyclic radical being bonded through the N atom in the above formula to the R and R.degree. groups;
• X is an anion selected from the class consisting of chlorine, iodine, bromine, aryl sulfonate having 6 to 18 carbon atoms, nitrate, nitrite and borate anions when taken individually, sulfate and sulfite anions when two X.sup.- groups are taken together and a phosphate anion when three X.sup.- groups are taken together;
• and t is an integer of 0 to 1, with the proviso that when t is 1, R.degree. can also be a group of the formula --R"OR"-- wherein R" is selected from the class consisting of divalent hydrocarbon groups and hydroxy-substituted divalent hydrocarbon groups as defined above.