Magnetic particles and magnetic carrier for electrophotographic developer
US6106987A · kind A · utility
9Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1136
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Magnetic particles of the present invention comprise: PA1 magnetic core particles; PA1 an intermediate layer formed on each surface of said magnetic core particles, comprising a silane-based coupling agent oligomer; and PA1 a resin composition layer formed on said intermediate layer, comprising a metal-based curing agent, a coupling agent and a silicone resin, PA1 and having an average particle size of 10 to 200 .mu.m. Such magnetic particles are useful for an electrophotographic magnetic carrier for an electrophotographic developer which have an excellent durability and a stable charging property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.