Rubber Processing Method
US10562780B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2015 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jun 20, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to methods for removing carbon from a char product that is formed by heating a silica-containing rubber compound in an inert atmosphere or under vacuum. The method includes heating the char product in an oxidising atmosphere to remove the carbon material leaving a silica-containing product. The methods are particularly applicable to vehicle tyre rubber compositions. Silica-containing products obtained by these methods and rubber compositions incorporating such silica-containing products are also aspects of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.