Patent ID: 7105500

Claim:
A process for durable antimicrobial treatment of natural or synthetic polyamide or cellulosic fibers, comprising reacting an inclusion complex of a fiber-reactive cyclodextrin containing an antimicrobial agent with said fibers, and having fiber reactive groups bonded to the cyclodextrim wherein the antimicrobial agent is selected from the group consisting of (a) halogeno-o-hydroxydiphenyl compounds of the formula wherein X is oxygen, sulfur or —CH 2 —, Y is chloro or bromo, Z is SO 2 H, NO 2 or C 1 –C 4 -Alkyl, r is 0 to 3, o is 0 to 3, p is 0 or 1, m is 0 or 1 and n is 0 or 1; and at least one of r or o is ≠0, and non-halogenated hydroxydiphenyl ether compounds of the formula wherein U 1 and U 2 are independently of each other hydrogen, hydroxy, unsubstituted or hydroxy-substituted C 1 –C 20 alkyl, C 5 –C 7 cycloalkyl, C 1 –C 6 alkylcarbonyl, C 1 –C 20 alkoxy, phenyl or phenyl-C 1 –C 3 -alkyl; U 3 is hydrogen, C 1 –C 20 alkyl, C 1 –C 20 alkoxy or C 1 –C 6 alkylcarbonyl; and U 4 is hydrogen, unsubstituted or hydroxy-substituted C 1 –C 20 alkyl, C 5 –C 7 cycloalkyl, hydroxy, formyl, acetonyl, C 1 –C 6 alkylcarbonyl, C 2 –C 20 alkenyl, carboxy, carboxyC 1 –C 3 alkyl, C 1 –C 3 alkylcarbonyl-C 1 –C 3 alkyl or carboxyallyl.