Hydratable form of keratin for use as a soil amendment
US6649740B1 · kind B1 · utility
6Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/842
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydratable oxidized keratin composition comprising one or more metal ion species capable of absorbing water to form a hydrogel. The keratin material is useful as a soil amendment providing organic and inorganic nutrients. The keratin material is also useful as a nutrient source in the bioremediation of toxic contaminants soils and liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.