Photothermographic recording material coatable from an aqueous medium
US6306571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1997 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Dec 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/43
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing an aqueous dispersion I containing particles including a substantially light-insensitive organic heavy metal salt A with a solubility in 100 mL of water of less than 10.sup.-3 g at 20.degree. C. comprising the steps of: (i) producing an aqueous dispersion II containing particles containing a salt B with a solubility in 100 mL of water between 1.5 g and 0.001 g at 20.degree. C.; and (ii) converting the salt B in the particles of the aqueous dispersion II into the organic heavy metal salt A, wherein the organic heavy metal salt A and the salt B have a common cation; and a production process for thermographic and photothermographic materials therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.