Vulcanized rubber conversion
US9458304B2 · kind B2 · utility
0Cited by
7References
24Claims
0Family size
Inventors
Key dates
| Filing date | Nov 26, 2013 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Vulcanized rubber, for example from used tires, can be devulcanized to provide a reaction product that has similar rheological properties to the original un-vulcanized rubber. The vulcanized rubber is processed at a temperature that is less than a critical temperature of a solvent, such as water or water and alcohol. The process is carried out at a pressure that is higher than the vapor pressure of the solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.