Oleophilic foams for oil spill mitigation
US10954139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Oct 11, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/008
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of fabricating an oleophilic foam includes providing a foam comprising a base material. The base material is coated with an inorganic material using at least one of an atomic layer deposition (ALD), a molecular layer deposition (MLD) or sequential infiltration synthesis (SIS) process. The SIS process includes at least one cycle of exposing the foam to a first metal precursor for a first predetermined time and a first partial pressure. The first metal precursor infiltrates at least a portion of the base material and binds with the base material. The foam is exposed to a second co-reactant precursor for a second predetermined time and a second partial pressure. The second co-reactant precursor reacts with the first metal precursor, thereby forming the inorganic material on the base material. The inorganic material infiltrating at least the portion of the base material. The inorganic material is functionalized with an oleophilic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.