Liquid electrostatic developers containing aromatic hydrocarbons
US4663264A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1986 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Apr 28, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Liquid electrostatic developer having improved charging characteristics consisting essentially of PA1 (A) nonpolar liquid having a Kauri-butanol value of less than 30, PA1 (B) thermoplastic resin particles substantially nonsoluble in nonpolar liquid and aromatic hydrocarbon at ambient temperature and having an average by area particle size of less than 10 .mu.m, PA1 (C) nonpolar liquid soluble ionic or zwitterionic compound, and PA1 (D) aromatic hydrocarbon having a Kauri-butanol value of greater than 30. The electrostatic liquid developers are useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.