Method of meniscus coating
US4370356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1981 |
| Grant date | Jan 25, 1983 |
| Priority date | — |
| Expiry date | May 20, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Coating, particularly a method for uniformly depositing a micro thin layer of fluid upon the surface of an object such as a substrate, or the like. Flowing the coating material through a permeable and sloping surface, so as to develop a downward laminar flow of coating material on the outside of the sloping surface. The object to be coated is advanced tangentially to the flow of coating material such that the surface to be coated intersects laminar flow of coating material at the apex of the sloping surface. Meniscii of coating material are supported both at the leading edge and the trailing edge of coating material in contact with the surface to be coated. The uniform disengagement and drainage of deposited excess coating material from the coated surface are ensured by uniform meniscii and the constant downward laminar flow of coating material on the outside of the sloping surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.