Slot coating apparatus with improved coating bead region
US10525498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jun 29, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C5/0254
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A slot coating apparatus having an improved coating bead region is disclosed. An embodiment of the invention provides a slot coating apparatus configured to coat a coating liquid containing a high concentration of particles over a substrate, where the slot coating apparatus includes: a first slot die that is arranged at a downstream side of the coating liquid; a second slot die that is arranged at an upstream side of the coating liquid and is positioned facing the first slot die; a coating bead cover that extends from one side of the first slot die along a movement direction of the substrate; and a pressure adjustment device that is disposed at the second slot die side and is configured to form a pressure gradient between the downstream and the upstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.