Wood preservative formulations comprising isothtazolones which provide protection against surface staining
US11457630B2 · kind B2 · utility
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1References
19Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 17, 2016 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Nov 17, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K3/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a wood preservative formulation comprising an isothiazolone, an organic fungicidal timber decay preservative and an unsaturated carboxylic or sulphonic acid, salt or anhydride thereof. The formulations of the invention are surprisingly effective at protecting wood and other cellulosic substrates, in particular at providing prolonged protection against in-service surface staining. The invention also provides methods for treating wood and other cellulosic substrates with said formulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.