Colorants based n-halamines compositions and method of making and using

3 The composition of claim 1, wherein the N-halamine biocidal dye composition comprises the formula:

• wherein R is a halogen carbon or nitrogen, R1, R2, R3, R4, R5, R6, R7, R8, X and X2 are independently an alkyl group, an alkylene group, an alkenyl group, an alkynyl group, an aryl group, an alkoxy group, an alkylcarbonyl group, an alkylcarboxyl group, an amido group, a carboxyl group or a halogen and may be an optionally substituted with one or more alkyl groups, alkylene groups, alkenyl groups, alkynyl groups, aryl groups, alkoxy groups, alkylcarbonyl groups, alkylcarboxyl groups, amido groups, carboxyl groups, a halogen or a hydrogen.

A method of halogenating a biocidal N-halamine dye article comprising the steps of:

• providing a N-halamine dye article comprising one or more N-halamine biocidal compounds comprising two or more heterocyclic ring structures attached to one or more N-halamine groups, wherein one or more halogens associate with the one or more one or more N-halamine groups to affect biocidal activity;
• and
• exposing the N-halamine dye article to a halogen source.

A biofilm resistant surface comprising one or more N-halamine biocidal compounds immobilized to the surface to form a biofilm resistant surface, wherein the one or more N-halamine biocidal compounds comprise two or more heterocyclic ring structures attached to one or more N-halamine groups, wherein one or more halogens associate with the one or more one or more N-halamine groups to affect biocidal activity.