Die coating method and apparatus
US5639305A · kind A · utility
49Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | Jun 17, 1997 |
| 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 method and 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. The shape of the land conforms to the shape of the surface being coated. Changing at least one of the slot height, the overbite, and the convergence can improve coating performance. A replaceable, flexible strip can be used above the coating slot to facilitate replacement of a damaged overbite edge. The strip can be held in position by vacuum applied through the downstream bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.