Colored polymeric dielectric particles and method of manufacture
US5587242A · kind A · utility
8Cited by
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7Claims
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Key dates
| Filing date | Nov 21, 1995 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Nov 21, 2015 |
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.