Digestion of keratin
US10030099B2 · kind B2 · utility
0Cited by
25References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Mar 30, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the chemical digestion of keratin, such as avian feathers and wool. The digestion product is made by heating the feathers or wool with a solvent selected from glycols, alkanolamines, polyamines, and combinations thereof. The resulting digested keratin product is a keratin-derived polyol useful for making polymeric materials such as polyurethanes. The digestion products provide a sustainable alternative to petrochemical based intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.