Colored polymeric dielectric particles and method of manufacture
US5498674A · kind A · utility
75Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | May 11, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for forming dielectric particles includes admixing a vinyl halide monomer and a crosslinker in a liquid dispersion medium to form a first mixture. A second mixture of an initiator and a stabilizer is prepared and added to the first mixture to form a third mixture in which the monomer polymerizes to form white crystalline polymer particles which are sonified for uniformity. The particles may be stained by exposure to a dehydrohalegenation reagent and dispersed in an electrophoretic fluid for use in an electrophoretic display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.