Method for applying a coating composition having a sparkling luster containing FeO.sub.3 particles of hexagonal plate-like shape
US4950507A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 1, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Dec 1, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D5/068
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a metallic coating method comprising the steps of applying a color coating composition, applying a metallic coating composition containing a metallic pigment to the layer of the color coating composition and applying a clear coating composition to the layer of the metallic coating composition, the method being characterized in that the color coating composition is able to form a layer having a Munsell value of 0 to 6; that the metallic coating composition contains a metallic pigment and a vehicle as main components, the metallic pigment being iron oxide particles of hexagonal platelike shape which contain at least 80% by weight of .alpha.-iron oxide crystals; that about 90% by weight or more of the metallic pigment has a longitudinal size of about 30 .mu.m or less and 40% by weight or more of the pigment has a longitudinal size of about 5 to about 15 .mu.m; that the thickness of the pigment is about 1/10 to about 1/20 of the longitudinal size of the pigment; and that the amount of the pigment used is about 0.1 to about 30 parts by weight per 100 parts by weight of the vehicle (as solids).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.