Microwave treatment of vulcanized rubber
US6420457B1 · kind B1 · utility
9Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and resulting product is provided in which a vulcanized solid particulate, such as vulcanized crumb rubber, has select chemical bonds broken by microwave radiation. The direct application of microwaves in combination with uniform heating of the crumb rubber renders the treated crumb rubber more suitable for use in new rubber formulations. As a result, larger particle sizes and/or loading levels of the treated crumb rubber can be used in new rubber mixtures to produce recycled composite products with good properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.