Processes for the removal of rubber from non-hevea plants
US10626194B2 · kind B2 · utility
6Cited by
180References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Feb 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided herein are organic solvent-based processes for the removal of rubber from non-Hevea plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.