Incorporation of lignin in polyurethane products
US10604616B2 · kind B2 · utility
0Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Dec 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J175/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Composition comprising lignin dispersed in a polyisocyanate wherein the (d90) mean particle size of the dispersed lignin is less than 5 μm, preferably less than 2 μm, more preferably less than 1 μm and use of said composition in various polyurethane applications, in particular structural wood adhesives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.