Composition and electrophotographic use of microcapsular photoactive toner particles
US5015549A · kind A · utility
9Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Sep 25, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2987
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A positive or negative latent image can be developed with negatively or positively charged toner particles, respectively, that are microcapsular. The shell material of the toner particles is a melamine-formaldehyde resin or a starch-based material. The core is a liquid solution comprising at least a liquid, ethylenically unsaturated monomer, a leuco dye and a photoinitiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.