Pleochroism powder and pleochroism printed article
US7022409B2 · kind B2 · utility
0Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A multi color changing powder with a bluish base appearance color of which color tone varies according to the observation direction is provided. A pleochroism powder of the present invention comprises a flaky mica having a coating which consists of two layers wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.