Aqueous 1,2-benzisothiazolin-3-one concentrates
US12285014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2019 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Apr 18, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01P1/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to an aqueous biocide composition, containing the following components: (a) 9 wt. % to 20 wt. % 1,2-benzisothiazolin-3-one, (b) a dissolved alkalizing agent, containing 0.95 to 1.05 mol sodium and potassium hydroxide, each based on one mol of the 1,2-benzisothiazolin-3-one present as component (a), and (c) more than 60 wt. % water. The biocide composition is characterized in that the composition: (i) has a pH value in the range of pH 9.5 to pH 11.9, and (ii) the molar fraction of sodium ions, based on the sodium and potassium ions present in the composition, is in the range of 15 to 45 mol %. The invention furthermore relates to the use of these biocide compositions for preserving water-based products of all kinds, such as cleaning and household products, plastic dispersions, paints, plasters, adhesives, sealing compounds, paper coating compounds, textile softening and sizing agents, detergent base materials, surfactants, polishing agents, spinning baths, cooling lubricants, leather treatment agents, and silicone and bitumen emulsions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.