Asphalt compositions for pavement
US5328943A · kind A · utility
20Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Jul 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An asphalt composition for use in road pavements is disclosed which comprises chiefly of an asphalt of natural or petroleum origin, a thermoplastic elastomer and/or a styrene-butadiene rubber and a low molecular weight polypropylene. These components are premixed or plant-mixed to form a reformed asphalt which is mixed with an aggregate to provide a paving material having increased compression strength, increased low temperature viscosity and decreased high temperature viscosity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.