Glow discharge treatment of a web substrate surface in a web coating line
US5954926A · kind A · utility
1Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Feb 28, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C59/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Apparatus capable of sustained glow discharge at atmospheric pressure mounted along the web path in a web coating machine ahead of the point of coating application, for glow discharge treatment of the surface of a polymeric web shortly before coating. Latencies of treatment (the time between treatment and coating) approaching zero are possible, minimizing or preventing loss of treatment effect and maximizing adherence of a coated layer to the web surface. Elimination of one or more conventional subbing adhesion layers on the web surface is possible in some applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.