Oxidized blends of asphalt and paraffinic base stock fluxing component having improved low temperature properties
US6027557A · kind A · utility
27Cited by
22References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Paraffinic fluxing components, e.g., paraffinic base stocks such as neutral oils or foots oil, can be added to asphalt composition and the resulting blend oxidized, e.g., by blowing, to improve low temperature properties at low addition rates (e.g., oil 1-5 wt. %). The resulting asphalt compositions exhibit important improvements in low temperature properties, resistance to thermal cracking and expanded useful temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.