Electrostatic inks and method for their production
US9745488B2 · kind B2 · utility
0Cited by
24References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2012 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jun 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The application relates to a method of producing an electrostatic ink composition, the method comprising: mixing a resin and a conductive pigment in a continuous mixer to form a compounded mixture comprising particles comprising the resin and the pigment; adding a liquid carrier to the compounded mixture, such that the particles comprising the resin and the conductive pigment are dispersed in the liquid carrier; and, before, during or after adding the liquid carrier to the compounded mixture: imparting a charge on the particles comprising the resin and the pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.