Microbiocidal article for aqueous systems
US4656057A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Jul 17, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N43/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved article of a membrane permeable to water and impermeable to microbiocidal compounds containing therein a solid particulate microbiocidal composition which is useful in aqueous systems, wherein the composition is produced from aqueous solutions of a water-soluble microbiocidal compound absorbed in an inert, finely-divided water-insoluble solid carrier. Especially useful are microbiocidal 3-isothiazolones and 2-substituted-1,2-benzisothiazolones, and metal salt stabilized derivatives thereof, absorbed into a silicaceous diatomaceous earth in a sealed, perforated membrane, for example, a perforated bag, produced from polyethylene. These articles afford a form, which is safer for handling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.