Polyacrylamide surface modifiers for silver carboxylate nanoparticles
US6391537B2 · kind B2 · utility
9Cited by
2References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/03594
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed a nanoparticulate dispersion of a silver carboxylate particles having on the surface of the particles a surface modifier which is a nonionic oligomeric surfactant based on vinyl polymer with an amido function. In particular, the surface modifier is acrylamide, methacrylamide or derivatives thereof. Also disclosed are various compositions including the dispersions including oxidation-reduction imaging forming compositions, thermographic elements and photothermographic compositions and elements. The preferred carboxylate is a silver salt of a long chain fatty acid such as silver behenate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.