Coating processes
US5391401A · kind A · utility
13Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1993 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jun 17, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In curtain coating, uniform layer or layers are only obtained if the operational variables are held within precise limits. These limits define a "coating window". However, one of the boundaries of this "window" is governed by the occurrence of air-entrainment. Described herein is an improved coating process in which allows the "coating window" to be enlarged. This is achieved by using a material adjacent the support on to which the liquid material is to be coated which readily shear-thins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.