Inkless reimageable printing paper and method
US7541119B2 · kind B2 · utility
1Cited by
34References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 13, 2007 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Jun 13, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/106
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder, and where the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.