Method for producing a binder composition, binder composition, and wood product
US12139649B2 · kind B2 · utility
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25References
5Claims
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Key dates
| Filing date | Mar 11, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | May 31, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J161/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method for increasing the reactivity of lignin, wherein the method comprises the following steps: a) forming, under heating at a temperature of 30-70° C., an aqueous dispersion comprising alkali and lignin, wherein the alkali comprises a hydroxide of an alkali metal; and b) heating the dispersion formed in step a) at a temperature of 50-95° C. for producing alkalated lignin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.