Bio-polyol composition and bio-polyurethane foam material
US10087298B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Dec 26, 2014 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2497/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A bio-polyol composition and a bio-polyurethane foam material are provided. By using the modifier and applying the dispersing and grinding process, the modified lignin is uniformly dispersed in the polyol solution and a bio-polyol composition is obtained. The obtained bio-polyol composition may be used to prepare the bio-polyurethane foam material with a high lignin content, a high compression strength and superior flame-resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.