Multilayer articles including coatings containing metal on microfiltration membrane substrates
US11135554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2018 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Jun 1, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure provides a multilayer article. The multilayer article includes a) a microfiltration membrane substrate, the microfiltration membrane substrate having a first major surface; and b) a first layer having a first major surface and a second major surface disposed opposite the first major surface. The first major surface of the first layer is directly attached to the first major surface of the microfiltration membrane substrate. The first layer includes a first polymeric binder and a plurality of acid-sintered interconnected first silica nanoparticles arranged to form a continuous three-dimensional porous network. The multilayer article further includes c) a second layer attached to the second major surface of the first layer. The second layer includes i) a metal coating or ii) a composite coating comprising a second polymeric binder and at least one of metal nanoparticles or metal nanowires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.