Methods and systems for manufacturing modified asphalts
US7906011B2 · kind B2 · utility
5Cited by
56References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2009 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Jun 12, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F27/27
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and systems for efficiently manufacturing modified asphalt materials include agitating a base asphalt at a high shear rate using an in-line mixer equipped with a rotor-stator mixing tool while simultaneously exposing the asphalt to oxygen by blowing an oxygen-containing gas at a high gas flow rate through openings in the rotor-stator mixing tool and heating the asphalt at an elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.