Method for preparation of asphalt composition
US7037961B2 · kind B2 · utility
3Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for preparing an asphalt composition includes the steps of providing asphalt; mixing sulfur with the asphalt at a temperature greater than 200° C. to provide a sulfur-asphalt blend; providing a heavy aromatic oil; and mixing the heavy aromatic oil with the sulfur-asphalt blend to provide the asphalt composition. Polymers can also advantageously be incorporated into the asphalt composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.