Alkylhydroxy benzylpolyamine as adjuvant for electrostatic liquid developers
US4977056A · kind A · utility
8Cited by
6References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1987 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Aug 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic liquid developer consisting essentially of PA1 (A) nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount, PA1 (B) thermoplastic resin particles having an average by area particle size of less than 10 .mu.m, PA1 (C) nonpolar liquid soluble ionic, nonionic, or zwitterionic compound, and PA1 (D) alkylhydroxybenzylpolyamine as define herein, being operably soluble in component (A) above. Optionally colorant, adjuvants, etc., are present. The liquid electrostatic developer is 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.