Lubricant particles, method of preparation, and photographic elements
US5541048A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | May 12, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/7635
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention contemplates droplets of liquid lubricant, each droplet coated with colloidal particulate suspension stabilizing agent. The invention also contemplates a method of making size stable lubricant droplets by forming a discontinuous phase of lubricant droplets in a continuous aqueous phase containing a particulate suspension stabilizing agent, reducing the size of the lubricant droplets and limiting the coalescence of the lubricant droplets by action of the particulate suspension stabilizing agent. A third aspect of the invention is an imaging element comprising a support, at least one light-sensitive layer and a protective layer further removed from the support than the light-sensitive layer, at least one layer containing droplets of lubricant coated with colloidal particulate suspension stabilizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.