Modified hydrophobic sponges
US9931611B2 · kind B2 · utility
0Cited by
6References
9Claims
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Assignee
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Key dates
| Filing date | Nov 4, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Nov 4, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Articles are provided for absorbing fluids. In embodiments, the articles of the present disclosure are modified to make them hydrophobic, thereby decreasing their affinity for water and similar liquids, while increasing their affinity for other hydrophobic materials, including oil. After use, the articles, in embodiments polyurethane sponges, may have their absorbed materials removed therefrom, and the articles may then be reused to absorb additional materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.