Fluidized bed spray coating of polyester chemical toners with additives
US7297459B2 · kind B2 · utility
0Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2004 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Jul 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for manufacturing a toner having improved relative humidity sensitivity is described. The process comprises forming polyester toner particles by emulsion/aggratation, fluidizing the toner particles with a stream of inert gas while spraying the toner particles with a solution containing an additive affecting relative humidity sensitivity, and wherein the additive contacts a surface of the toner particles and the additive remains on the surface of the toner particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.