Modified asphalt compositions containing dialkyl polysulfides
US11732108B1 · kind B1 · utility
2Cited by
57References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2020 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Oct 16, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2555/84
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Modified asphalt compositions and methods of making same. The modified asphalt compositions include asphalt, a crosslinkable polymer, and a dialkyl polysulfide. The methods of making the compositions include blending a mixture of asphalt, a crosslinking polymer, and a dialkyl polysulfide, such as at a temperature of about 100-300° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.