Process for formation of multilayer film
US5718950A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Feb 17, 1998 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D5/065
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a process for forming a multilayer film, by applying, onto a substrate, the following three coatings: (A) a coloring base coating containing a titanium white pigment and an aluminum flake and capable of forming a film having a value of N 7 to N 9 in Munsell's color system, (B) a white-pearl-like or silver-pearl-like base coating containing a scaly mica powder coated with titanium oxide, and (C) a clear coating in this order without substantially curing the resulting films of the coatings (A), (B) and (C); as necessary conducting preliminary drying at 50.degree.-100.degree. C. between the application of the coating (A) and the application of the coating (B) and/or between the application of the coating (B) and the application of the coating (C); and heating the three films to crosslink and cure them simultaneously. The multilayer film has excellent high white-iridescent appearance, color stability, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.