Method for applying a protective overcoat to a photographic element using a fuser belt
US6083676A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C11/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of forming a protective overcoat on a photographic element including the steps of providing a photographic element having a silver halide light-sensitive emulsion layer; applying a hydrophobic polymeric coating over the silver halide light sensitive emulsion layer; fusing the hydrophobic polymeric coating to the photographic element over the silver halide light sensitive emulsion layer to form a protective overcoat; by passing the photographic element through a nip formed between a heated fuser belt having a resin made by curing a composition including siloxanes and a roller to fuse the hydrophobic polymeric coating to the photographic element, wherein the siloxanes having a ratio of difunctional to trifunctional units of 1:1 to 1:2.7 and at least 90% of total number of functional units in the siloxanes are difunctional and trifunctional units, a weight average molecular weight of 5,000 to 50,000 grams/mole, and an alkyl to aryl ratio of 1:0.1 to 1:1.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.