Catalytic devulcanization of rubber
US7425584B2 · kind B2 · utility
14Cited by
11References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2004 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates generally to the delulcanization of rubber. More specifically, the present invention relates to a process for the hydro-devulcanization of vulcanized rubber utilizing a rubber swelling solvent, a source of reactive hyrogen and elevated temperature and, optimally, also uses a dispersed molecular-scale hydrogenation catalyst that is introduced into the vulcanized rubber in a catalytically inert form that is soluable in the rubber swelling solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.