Process for producing polymerization toner
US6458502B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0806
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing a polymerization toner, which comprises preparing a polymerizable-monomer composition which contains at least a polymerizable monomer and a colorant and does not contain any polymerization initiator, i) introducing the polymerizable-monomer composition into an aqueous medium to effect granulation, adding a polymerization initiator to the aqueous medium in the course of the granulation or after the granulation has been completed, or ii) adding a polymerization initiator in an aqueous medium, introducing the polymerizable-monomer composition into the aqueous medium to effect granulation, and then polymerizing the polymerizable-monomer composition having been granulated, to produce toner particles. In the process, the polymerization initiator is added in a specific time and a specific manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.