Method of preparing encapsulated bichromal balls

Details Method of preparing encapsulated bichromal balls Method of preparing encapsulated bichromal balls

2006-10-31

2006-10-31

Mack, Ricky (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C427S213300, C204S471000, C264S001700

Reexamination Certificate

active

07130107

ABSTRACT:
Disclosed is a method of preparing encapsulated bichromal balls. The method involves forming capsules of electrophoretic particles encapsulated within a dielectric fluid such as a hydrocarbon solvent or siloxane oil that includes a small amount of a gelating agent. Bichromal balls are then formed by heating the capsules and applying an electric field. The capsules are then cooled while the electric field is maintained. Upon sufficient gelling, the electrophoretic particles are fixed within the gelled medium, i.e. the capsule. The bichromal gel produced detaches from the inside wall of the capsule, and thereby constitute the resulting encapsulated bichromal balls.

REFERENCES:
patent: 3215572 (1965-11-01), Papell et al.
patent: 3697437 (1972-10-01), Fogle et al.
patent: 3960514 (1976-06-01), Teng et al.
patent: 4880720 (1989-11-01), Drappel et al.
patent: 5037716 (1991-08-01), Moffat
patent: 5132355 (1992-07-01), Nahlovsky
patent: 5262098 (1993-11-01), Crowley et al.
patent: 5344594 (1994-09-01), Sheridon
patent: 5417287 (1995-05-01), Smith et al.
patent: 5514645 (1996-05-01), McCabe et al.
patent: 5604027 (1997-02-01), Sheridon
patent: 5604207 (1997-02-01), DeFrees et al.
patent: 5723204 (1998-03-01), Stefik
patent: 5930026 (1999-07-01), Jacobson et al.
patent: 5961804 (1999-10-01), Jacobson et al.
patent: 6067185 (2000-05-01), Albert et al.
patent: 6249271 (2001-06-01), Albert et al.
patent: 6406747 (2002-06-01), Biegelsen et al.
patent: 6445490 (2002-09-01), Chopra et al.
patent: 6488870 (2002-12-01), Chopra et al.
patent: 6492025 (2002-12-01), Chopra et al.
patent: 6515649 (2003-02-01), Albert et al.
patent: 2004/0202862 (2004-10-01), Kazmaier et al.
patent: 0338738 (1989-10-01), None
patent: 0207787 (1992-08-01), None

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