Highly lubricated imaging element with elastomeric matte
US6913874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Nov 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic imaging element is disclosed comprising a support having on a front side thereof a silver halide imaging layer and an outermost protective overcoat layer comprising a film-forming binder, and on the backside thereof an outermost protective backcoat layer comprising a film-forming binder; the protective overcoat and backcoat layers each comprising a lubricant present in an amount of at least 5 mg/m2 and permanent matting agent having a Tg of at least 40° C. and an average particle size of from about 0.5 to about 3 micrometers in an amount of at least 1 mg/m2; and at least one of the protective overcoat layer or the protective backcoat layer further comprising crosslinked elastomeric polymer matte particles, wherein the crosslinked elastomeric polymer matte particles have a Tg of 20° C. or less, an average particle size of at least 90% of or greater than that of the permanent matting agent particles having a Tg of at least 40° C. in the protective layer in which the crosslinked elastomeric matte is included, and are present in the protective overcoat layer or protective backcoat layer in an amount which is (i) at least 1 mg/m2 and (ii) less than the total level of perm…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.