Modified liquid electrostatic developer having improved image scratch resistance
US4820605A · kind A · utility
10Cited by
2References
68Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1355
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Liquid Electrostatic Developer consisting essentially of PA0 A. nonpolar liquid having a Kauri-butanol value of less than 30, present in major amount, PA0 B. at least one thermoplastic resin having average by area particle size of less than 10 .mu.m, PA0 C. a charge director compound, PA0 D. particles of a blend of wax and at least one metallic soap or inorganic metal salt, e.g., triglyceride wax/metallic soap or metal salt. Optionally a colorant is present. The liquid electrostatic developer is useful in copying, e.g., medical hard copies, making proofs, lithographic printing plates, and resists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.