Coating method
US4297396A · kind A · utility
10Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Dec 7, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/7492
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A slide bead coating method and apparatus wherein a first coating liquid is supplied from a center portion of a slide surface and a second coating liquid is supplied along edge portions thereof contiguous to the flow of the first coating liquid. The second coating liquid has a viscosity lower than that of the first coating liquid and a flow rate which is also lower than that of the first coating liquid. In this manner, breakage of both end portions of the bead is prevented without coating both end portions thicker than the center portion while yet a high coating speed operation is attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.