Electrophotographic carrier particles coated with polymer mixture
US4935326A · kind A · utility
317Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1987 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a carrier and developer composition, and a process for the preparation of carrier particles with substantially stable conductivity parameters which comprises (1) providing carrier cores and a polymer mixture; (2) dry mixing the cores and the polymer mixture; (3) heating the carrier core particles and polymer mixture, whereby the polymer mixture melts and fuses to the carrier core particles; and (4) thereafter cooling the resulting coated carrier particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.