Concentrated aqueous solution of glutaraldehyde and 1,2-benzisothiazolin-3-one
US5004749A · kind A · utility
5Cited by
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14Claims
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Key dates
| Filing date | Apr 20, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Apr 20, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N43/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Concentrated aqueous solutions of 1,2-benzisothiazolin-3-one are prepared by incorporating a buffering agent such that the pH of the solution is between about 3.0 and 7.0, and further adding a sufficient amount of glutaraldehyde such that a greater amount of such 1,2-benzisothiazolin-3-one is in solution than would be in solution if such glutaraldehyde were not present. Also disclosed is a synergistic biocidal composition comprising glutaraldehyde and 1,2-benzisothiazolin-3-one, as well as an aqueous-based industrial composition comprising such synergistic biocidal composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.