Coated carrier particles and electrographic developers containing them
US5100754A · kind A · utility
12Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1989 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Dec 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides coated carrier particles and dry electrographic developers comprising a mixture of the carrier particles and toner particles. Each of the carrier particles comprises a core particle having a polymeric overcoat comprising a blend of a fluorine-containing polymer and a modifying polymer comprising poly(p-t-butylstyrene) or a copolymer of p-t-butylstyrene and a C.sub.1 -C.sub.4 alkyl methacrylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.