Die coating apparatus with surface covering
US5759274A · kind A · utility
19Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Apr 29, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C11/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A die coating apparatus includes a die having an upstream bar with an upstream lip and a downstream bar with a downstream lip. The upstream lip is formed as a land and the downstream lip is formed as a sharp edge. A low surface energy covering is applied to the surface of the downstream bar adjacent to the sharp edge, and to the surface of the land, adjacent to its downstream edge. This presents a generally undulating surface. The low surface energy coverings need not extend completely to the edges of the downstream bar and the land.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.