Quarternary ammonium pendant siloxane copolymers

Claim 1

A process for producing a quarternary ammonium pendant siloxane copolymer containing in the copolymer backbone the quarternary ammonium pendant siloxy unit of the structure: ##STR18## or the siloxy unit: ##STR19## or the siloxy unit: ##STR20## which comprises reacting an epoxy pendant siloxane copolymer containing in the copolymer backbone the epoxy pendant siloxy unit of the structure: ##STR21## or the siloxy unit: ##STR22## or the siloxy unit: ##STR23## with a tertiary amine acid salt of the general formula R 3 '"N·HX in contact with a catalytic amount of free tertiary amine catalyst of the general formula R 3 '"N, said catalytic amount being at a ratio of from about 0.0005:1 to about 0.05:1 free tertiary amine equivalent to tertiary amine acid salt equivalent, wherein R is an alkyl group having from 1 to 3 carbon atoms; R" is hydrogen or methyl; R'" is a hydrocarbyl group having from 1 to about 20 carbon atoms; X represents the charged anion of the inorganic or organic acid of the acid component used in preparation of the tertiary amine acid salt; r has a value of from 1 to about 10; m has a value of from 2 to about 4; n has a value of from 0 to about 10; y has a value of 1 or 2; and z has a value of 1 to 3.