Asphalt compositions
US6492439B2 · kind B2 · utility
26Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Dec 28, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L61/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rubber-modified asphalt composition is provided. The asphalt composition includes asphalt, a rubber including at least high vinyl poly(conjugated diene), and at least one phenolic curing resin. The high vinyl poly(conjugated diene) has a vinyl content of at least 35%. The use of phenolic curing agents results in improvements to the softening point of the present asphalt composition while also improving toughness and tenacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.