Polyurethane based asphalt composition
US9580601B2 · kind B2 · utility
3Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A30/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyurethane based asphalt composition includes an asphalt component and a polyurethane resin system that is the reaction product of an isocyanate component that includes at least one polyisocyanate and an isocyanate-reactive component that includes a cardanol-modified epoxy polyol. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5. The epoxy-reactive component includes a cardanol component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.