Bio-asphalt, bio-asphalt composition and method for preparing them
US9752098B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | May 13, 2013 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2555/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure provides bio-asphalt, bio-asphalt compositions and a method for preparing them. It belongs to the technical field of asphalt material. The method of the disclosure uses bio-oil as the raw material, adopts a combination of extraction process and oxidation process to prepare bio-asphalt, and modifies the product obtained from bio-oil by extraction process or bio-asphalt with ordinary petroleum asphalt and/or aromatic hydrocarbon oil and a macromolecular material to obtain a bio-asphalt composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.