Organic silver salt dispersion and production method thereof, photothermographic material and production method thereof
US7022471B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | Aug 19, 2004 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Sep 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/49809
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An organic silver salt dispersion containing: light-insensitive organic silver salt grains; photosensitive silver halide grains; a solvent; and a binder for dispersion, wherein the organic silver salt is prepared by using: (i) an alkaline metal salt of an organic acid other than a sodium salt; and (ii) a water soluble silver compound, and the binder is a polyvinyl acetal resin having a polymerization degree of 250 to 1000 and prepared by acetal forming reaction of a polyvinylalcohol with an aldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.