Method for forming monolayer powder film
US6383558B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jul 12, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D5/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coating method for uniformly forming a monolayer powder film on a base material, even if fine powders having a volume average particle diameter of 15 &mgr;m or less are employed is disclosed. An adhesive layer consisting of an adhesive having a weight average molecular weight of 250,000 or more is formed on a base material, powders are adhered on the adhesive layer, the powders are embedded in a surface of the adhesive layer by impacts of granular pressure media, adhered surplus powders are removed from this laminate, and a monolayer powder film consisting of a large amount of powders embedded as a monolayer, so that part thereof protrudes from the adhesive layer, is thereby formed on a surface of the adhesive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.