. . . "me evident from the following description: I have discovered that halogens such as iodine, iodine mono-bromide and iodine monochloride, are readily complexed by alkylated polymers of heterocyclic N-vinyl monomers to yield adducts having germicidal, bactericidal, fungicilal and disinfecting properties when employed in organic solvents, in unctuous materials and as aqueous dispersions." .