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:
Oct. 30, 2012
Filed:
Dec. 18, 2008
Takeshi Sako, Hamamatsu, JP;
Idzumi Okajima, Hamamatsu, JP;
Takahiro Yamashita, Hadano, JP;
Satoyuki Sekiguchi, Hamamatsu, JP;
Chiaki Tanaka, Izunokuni, JP;
Shogo Suzuki, Yokohama, JP;
Ryota Inoue, Mishima, JP;
Takeshi Sako, Hamamatsu, JP;
Idzumi Okajima, Hamamatsu, JP;
Takahiro Yamashita, Hadano, JP;
Satoyuki Sekiguchi, Hamamatsu, JP;
Chiaki Tanaka, Izunokuni, JP;
Shogo Suzuki, Yokohama, JP;
Ryota Inoue, Mishima, JP;
National University Corporation Shizuoka University, Shizuoka-shi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A method for producing colored polymer particles, including adding a colorant-containing composition containing a radically polymerizable monomer and a colorant in a supercritical fluid or a subcritical fluid and polymerizing the radically polymerizable monomer, so as to produce colored polymer particles which are insoluble in the supercritical fluid or subcritical fluid, wherein the supercritical fluid or subcritical fluid is a supercritical fluid or subcritical fluid in which at least the radically polymerizable monomer is soluble, but polymer particles resulted from polymerization of the radically polymerizable monomer are insoluble, and wherein the colorant is at least one selected from the group consisting of a pigment, a dye and a polymer dye.