Process for producing electrophoretic microcapsules

Details Process for producing electrophoretic microcapsules Process for producing electrophoretic microcapsules

2007-10-09

2007-10-09

Seidleck, James J. (Department: 1711)

Plastic and nonmetallic article shaping or treating: processes

Encapsulating normally liquid material

Liquid encapsulation utilizing an emulsion or dispersion to...

C264S004100, C264S004300, C428S402200, C428S402210

Reexamination Certificate

active

11007233

ABSTRACT:
A microcapsule is produced by dispersing a liquid organic dispersion in an aqueous medium to form a capsule particle in the aqueous medium, the liquid organic dispersion containing an acid group-containing resin, a colored particle and an organic solvent, and the capsule particle comprising a disperse system containing the liquid organic dispersion, and a wall encapsulating the disperse system, wherein the acid group of the resin has been at least partly neutralized with an alkanolamine. The wall comprises the resin, and the resin may be crosslinked or cured with a crosslinking agent. Moreover, the process may comprise crosslinking or curing the resin constituting the wall with the crosslinking agent, and further crosslinking or curing the residual crosslinking agent with a polyfunctional compound. Such a process can produce a microcapsule has a small and uniform particle size while encapsulating a disperse system dispersed a colored particle in an oil phase.

REFERENCES:
patent: 5117059 (1992-05-01), Tylor
patent: 5227421 (1993-07-01), Kageyama et al.
patent: 5438083 (1995-08-01), Takimoto et al.
patent: 6120588 (2000-09-01), Jacobson
patent: 56-24040 (1981-03-01), None
patent: 60-216838 (1985-10-01), None
patent: 61-37975 (1986-08-01), None
patent: 62-57645 (1987-03-01), None
patent: 62-97638 (1987-05-01), None
patent: 63-134048 (1988-06-01), None
patent: 64-86116 (1989-03-01), None
patent: 5-66600 (1993-03-01), None
patent: 05-0666000 (1993-03-01), None
patent: 5-27452 (1993-04-01), None
patent: 5-51339 (1993-08-01), None
patent: 5-53538 (1993-08-01), None
patent: 5-53539 (1993-08-01), None
patent: 6-362 (1994-01-01), None
patent: 6-343852 (1994-12-01), None
patent: 7-275689 (1995-10-01), None
patent: 2551783 (1996-08-01), None
patent: 9-290145 (1997-11-01), None
patent: 2797960 (1998-07-01), None
patent: 11-119264 (1999-04-01), None
patent: 11-202372 (1999-07-01), None
patent: 3035726 (2000-02-01), None
patent: 2001-503873 (2001-03-01), None
patent: WO98/19208 (1998-05-01), None
Kondo Tamotsu et al., Microcapsules, pp. 46-51 (published by Sankyoshuppan Co., Ltd.) (new edition, 1987).

Affiliated with

Also associated with

Rating

Process for producing electrophoretic microcapsules does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing electrophoretic microcapsules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing electrophoretic microcapsules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3880511