Use of microwave-produced carbon black to improve weathering of bituminous coating
US6562119B2 · kind B2 · utility
4Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D195/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In a method of improving the weathering of a bituminous coating, a microwave-produced carbon black is added to the coating. The microwave-produced carbon black is added in an amount sufficient to increase the cycles-to-failure of the coating by at least about 10% compared to the same coating without the added microwave-produced carbon black, when tested for weathering according to ASTM D 4799-00.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.