Phenolic asphalt blends
US5693132A · kind A · utility
4Cited by
10References
9Claims
0Family size
Inventors
Key dates
| Filing date | Dec 18, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Dec 18, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An asphalt blend is presented in which asphalt is blended with a phenolic tar. The phenolic tar is primarily cumyl phenol and phenolic materials having a molecular weight of between about 300 and 1000. The tar is obtained as the bottoms product of a phenol heavy ends separation process and may also include phenol and acetophenone. A process for preparing this blend is also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.