Plasticizer lignin compositions
US12378408B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Jun 5, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2410/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyurethane elastomer composition that contains (a) an organic diisocyanate, (b) a polyester resin, (c) a chain extender, (d) an optional crosslinker, (e) an optional colorant, (f) a surfactant, (g) a foaming agent, (h) an optional bio-additive, and a composition comprised of a plasticizer and a lignin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.