Micro-particle dispersion having hydrophobic protective colloid and method of manufacture thereof, photosensitive emulsion and method of manufacturing thereof, and silver salt photohermographic dry imaging material utilizing the same
US7419775B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Nov 8, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Jun 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of manufacturing a micro-particle dispersion having a hydrophobic protective colloid comprising the steps of: (a) dispensing micro-particles in a hydrophilic dispersant to form a hydrophilic micro-particle dispersion having the hydrophilic dispersant as a protective colloid, and (b) adding a dispersant to the hydrophilic micro-particle dispersion, the dispersant having a functional group capable of ion bonding with a hydrophilic group of the hydrophilic dispersant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.