Double side coating method
US5122386A · kind A · utility
9Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Apr 26, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/7425
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A double side coating method in which immediately after a first coating is carried out for the first side of a web, the first side of the web is supported in a non-contact manner, and a second coating is carried out for the second side of the web. Immediately before the second coating is carried out, the second side of the web is charged in unipolarity by corona discharges induced by a high voltage generating unit with an electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.