Resuspension optimization for photographic nanosuspensions
US5582957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Mar 28, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for storing nanoparticulate suspensions of photographically useful compounds is disclosed that comprises the steps of: PA1 providing a suspension of nanoparticulate photographically useful chemical substance in the form of a solid particle dispersion; PA1 providing a hydrodynamically optimized container for storing nanoparticulate suspensions comprising a base portion and a body portion unitary with said base portion, said portions defining an interior storage chamber hydrodynamically optimized for the resuspension of sedimented nanoparticulate suspensions, said body portion further comprising a body wall with interior and exterior surfaces; PA1 placing said solid particle dispersion in said container; PA1 sealing said container and storage chamber against the ambient atmosphere to form a sealed container; PA1 storing said sealed container; PA1 opening said sealed container; and PA1 using a portion of said solid particle dispersion stored in said container to form a coating composition for a light-sensitive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.