Asphalt-based dust control formulations
US11466224B2 · kind B2 · utility
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22Claims
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Assignee
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Key dates
| Filing date | Aug 28, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Aug 28, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This disclosure describes formulations and methods for dust control, for example, coal topping, a term which refers to the application of liquid products to the top of coal loads, such as those in open topped coal hopper railcars as commonly used today to transport coal. Disclosed herein are asphalt-based emulsion formulations that accomplish dust control during industrial operations in which dust handling is required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.