Use of large particle size lubricants in the protective overcoat of photographic papers
US6613503B1 · kind B1 · utility
3Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1996 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jun 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a photographic element comprising a reflection support and an overcoat layer wherein said overcoat layer comprises hydrophilic binder and lubricant, said lubricant has a particle mean diameter of greater than 1 &mgr;m and the volume of particles of lubricant below 1 &mgr;m is less than 5% of said total volume of lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.