Functional filters for hydrophobic liquid/hydrophilic liquid separations
US10874991B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Nov 28, 2016 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jan 2, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite material is described that is an effective filter to separate oil from an oil and water emulsion or other mixtures of oil and water. The composite material has a permeable substrate, such as fabric, that is coated with a selectively-permeable coating. The composite material allows only oil to pass through, while water is prevented from passing through. The composite material has two main components, a hydrophobic component and an emulsion-destabilizing component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.