Negative-working imageable elements and methods of use
US7781143B2 · kind B2 · utility
3Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Apr 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Negative-working imageable elements that can be imaged using infrared radiation comprise an imageable layer and a protective overcoat on a hydrophilic substrate. The imageable layer includes an IR-sensitive cyanine dye. The protective overcoat predominantly comprises one or more poly(vinyl alcohol) resins, each of which has a hydrolysis level of 85% or less. The use of this particular overcoat composition used in combination with the IR-sensitive cyanine dye provides improved tolerance to fogging by white light while maintaining desired imaging speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.