Polymer-modified asphalt with a crosslinking agent and methods of preparing
US8198350B2 · kind B2 · utility
36Cited by
10References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2010 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Apr 19, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A30/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Methods of preparing a cross-linked, polymer-modified asphalt is provided. The method involves adding a crosslinking agent to asphalt prior to the addition of a crosslinkable polymer and an acid. Asphalt prepared by the disclosed methods exhibit improved properties such as properties measured by the Multiple Stress Creep Recovery (MSCR) test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.