Colored polymeric dielectric particles and method of manufacture

Details Colored polymeric dielectric particles and method of manufacture Colored polymeric dielectric particles and method of manufacture

1994-05-11

1996-03-12

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525366, 525379, 525384, 5253315, 5253308, 526201, 526212, 526200, 526217, 526208, 526209, 526213, 526 77, 526344, 526296, 526255, 526250, 578502A, 578502R, 526344, 526296, 526255, 526250, C08F 214

Patent

active

054986745

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.

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Pigmented Polymer Particles With Controlled Morphologies, American Chemical Society Symposium, Series 492, Chapter 25, pp. 405-421, Hou et al., 1992.
Electrophoretic Display Medium, Lehigh University, Dept. of Chemistry, pp. 1-13, Fowkes et al., 1989.
J. March, Advanced Organic Chemistry, 4th Ed. (1992) p. 1004 Wiley, New York.

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