Slide die coating method and apparatus with improved die lip
US5741549A · kind A · utility
29Cited by
15References
8Claims
0Family size
Inventors
Key dates
| Filing date | Oct 3, 1996 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Oct 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C9/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A slide die coating method and apparatus includes a die having an upstream bar with an upstream lip, a manifold bars a downstream bar with a downstream lip, a vacuum bar, and a slide surface. The upstream lip is formed as a land and the first manifold bar is formed as a sharp edge. The coating fluid exits the die from a passageway and slides along the slide surface to form a continuous coating bead between the manifold bar sharp edge, the upstream die lip, and the surface being coated. The shape of the land conforms to the shape of the surface being coated. The die can include multiple passageways for coating multiple layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.