Particles with photochromic and light absorbing material for reimageable medium
US8304076B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Sep 27, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Various embodiments provide a plurality of particles and a reimageable medium including the plurality of particles. The plurality of particles can include a binder; a photochromic material; and a light absorbing material. The photochromic material is capable of reversibly converting among a less colored form and a more colored form in response to a predetermined wavelength scope, where light absorption by the light absorbing material is less than about 50% of light absorption by the less colored form of the photochromic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.