Polyhydroxy charging adjuvants for liquid electrostatic developers
US4734352A · kind A · utility
15Cited by
8References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Apr 22, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Electrostatic liquid developer having improved charging characteristics consisting essentially of PA0 (A) nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount, PA0 (B) thermoplastic resin particles having an average by area particle size of less than 10 .mu.m. PA0 (C) nonpolar liquid soluble ionic or zwitterionic compound, and PA0 (D) a polyhydroxy compound, preferably soluble in the developer in an amount of at least 2% by weight. 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.