Toner for developing electrostatic image containing specified double oxide particles
US5858597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Aug 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09708
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for developing an electrostatic image is constituted by toner particles containing at least a binder resin and a colorant, and particles containing at least one double oxide. The double oxide includes a double oxide (A) represented by the following formula (1): EQU M.sub.a Si.sub.b O.sub.c (1), wherein M denotes a metallic element selected from the group consisting of Sr, Mg, Zn, Co, Mn and Ce; a is an integer of 1-9; b is an integer of 1-9; and c is an integer of 3-9. The above particles including a double oxide (A) are effective in improving flowability and triboelectric chargeability of the toner and providing a resultant image with excellent image qualities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.