The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2008
Filed:
Dec. 05, 2003
Toru Torii, Suginami-ku, Tokyo, JP;
Toshiro Higuchi, Yokohama-shi, Kanagawa, JP;
Takasi Nisisako, Taito-ku, JP;
Youichi Takizawa, Sayama, JP;
Takanori Takahashi, Sayama, JP;
Toru Torii, Suginami-ku, Tokyo, JP;
Toshiro Higuchi, Yokohama-shi, Kanagawa, JP;
Takasi Nisisako, Taito-ku, JP;
Youichi Takizawa, Sayama, JP;
Takanori Takahashi, Sayama, JP;
Soken Chemical & Engineering Co., Ltd., , JP;
Other;
Abstract
Monodisperse colored spherical particles each having two separated color regions of two hues, that is, two-colored spherical particles, useful, for example, for displays of characters, graphics, images and the like, the two hues being for reverse display in terms of electricity and magnetism from the viewpoint of good suitability for display are provided. In the production process and the apparatus for producing the colored spherical polymer particles, microchannels are utilized including a first microchannel through which a colored continuous phase comprising a color dye/pigment dispersed in a fluid dispersing medium containing a polymerizable resin component and having colored phases of different hues is transferred, and a second microchannel through which a spheroidizing disperse phase flows. The process and apparatus spheroidizes the discharged colored continuous phase having two hues and cures the polymerizable resin component in the colored continuous phase, whereby colored spherical polymer particles are formed.