Filter comprising a coating layer of flake-like powders and a preparation method thereof
US11660556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2019 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Jun 19, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/1258
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
It is an object of the present invention to provide a filter having excellent filtration rate and excellent permeability and a method for producing the same. To achieve the above object, the present invention provides a filter comprising a porous metal support having the first pore size; and a metal coating layer formed on the support and having the second pore size smaller than the first pore size, wherein the coating layer has a three-dimensional pore structure by bonding flake-shaped metal powders. The present invention also provides a method for producing the filter. According to the present invention, as the flake-shaped second powders form a coating layer, the porosity increases and the permeability increases, and as the flow channel becomes more complicated, the filtration rate also increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.