Polymeric cyclic N-halamine biocidal compounds
US5490983A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Jul 28, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.