Powder coated with multilayer coating
US6261691A · kind A · utility
13Cited by
5References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 10, 1998 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Dec 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A powder comprising a base particle which has been colored desirably and vividly and having a high light transmittance in the visible region. The powder is a multilayer-coated powder comprising a base particle having thereon a multilayered film comprising at least one thin layer comprising a metal sulfide, a metal fluoride, a metal carbonate or a metal phosphate. This multilayered film reflects or absorbs the light having a specific wavelength according to the thickness thereof, the sequence of layer superposition, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.