Composite carrier particles for electrophotography and process for producing the same
US5108862A · kind A · utility
18Cited by
3References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 16, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Feb 16, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein are composite carrier particles for electrophotography comprising 80 to 99% by weight of ferromagnetic fine particles and a phenol resin, and having a number-average particle diameter of 10 to 1,000 .mu.m, a bulk density of not more than 2.0 g /cm.sup.3, and a curved surface configuration, and a process for producing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.