Biomass thermoplastic polyurethane
US10414852B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/7678
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A biomass-based thermoplastic polyurethane is provided. The biomass-based thermoplastic polyurethane is a reaction product of a composition. The composition includes 1-50 parts by weight of a modified lignin, 50-99 parts by weight of a first polyol, and 40-60 parts by weight of a diisocyanate. The modified lignin has an OH value of less than 3.0 mmol/g. The sum of the modified lignin and the first polyol is 100 parts by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.