Oxidized asphalt rubber system
US5342866A · kind A · utility
21Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1992 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Dec 30, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides an elastomeric-asphalt composition which does not phase separate and which is compatible at high temperatures. This compatible material can be produced without the need to use high shear milling equipment. The elastomeric-asphalt composition is not limited by the tendency of other elastomer polymers to be incompatible with asphalt nor does the composition separate into a polymer-rich phase and an asphalt-rich phase. In a preferred embodiment, the elastomeric materials are SBS and SIS block copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.