Polymeric cyclic N-halamine biocidal compounds

Details Polymeric cyclic N-halamine biocidal compounds Polymeric cyclic N-halamine biocidal compounds

1994-07-28

1996-02-13

Venkat, Jyothsan

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

422 37, 5253268, 5253282, 5253286, 5253332, 5253333, 5253336, A01N 2500

Patent

active

054909830

ABSTRACT:
Cyclic N-halamine biocidal polymer compounds and methods of using the same wherein the functional groups halogenated hydantoins, triazine diones, imidazolidinones, and pyrimidinones are substituted onto inexpensive polymer units such as polystyrene, polyethylene, and modified polymethacrylamide are provided. These N-halamine polymers are stable, insoluble biocides which release only small amounts of free halogen and other impurities. They will be useful as disinfectants for potable water, swimming pools, hot tubs, industrial water systems, cooling towers, air-conditioning systems, gas streams, paints, oils, ointments, fabrics, sterile bandages, coatings, hard surfaces, liners of containers, and the like.

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David W. Emerson, "Slow Release of Active Chlorine and Bromine from Styrene-Divinylbenzene Copolymers Bearing N, N-Dichlorosulfonamide, N-Chloro-N-alkylsulfonamide, and N-Bromo-N-alkylsulfonamide Functional Groups. Polymer-Supported Reagents," Ind. Eng. Chem. Res., 30:2426-2430 (1991).
David W. Emerson, "Polymer-Bound Active Chlorine: Disinfection of Water in a Flow System. Polymer Supported Reagents," Ind. Eng. Chem. Res., 29:448-450 (1990).

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