Preparation of highly stable concentrated dispersions of silver nanoparticles using synergistic dispersing agents
US11453058B2 · kind B2 · utility
2Cited by
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20Claims
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Key dates
| Filing date | May 20, 2020 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods for preparing highly stable concentrated dispersions of silver nanoparticles and described herein. Contemplated methods comprise combining a selected polysaccharidic dispersant with a selected non-reacting dispersant to yield concentrated silver dispersions with enhanced stability and lowered undesirable residual organics. Contemplated methods further comprise selecting an appropriate source of silver ions to reduce the ionic strength of the reaction medium and final silver dispersions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.