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. 01, 2013
Filed:
Jun. 26, 2009
Hiroyuki Shimanaka, Chuo-ku, JP;
Toshiyuki Hitotsuyanagi, Chuo-ku, JP;
Yoshikazu Murakami, Chuo-ku, JP;
Atsushi Goto, Uji, JP;
Yoshinobu Tsujii, Uji, JP;
Takeshi Fukuda, Uji, JP;
Hiroyuki Shimanaka, Chuo-ku, JP;
Toshiyuki Hitotsuyanagi, Chuo-ku, JP;
Yoshikazu Murakami, Chuo-ku, JP;
Atsushi Goto, Uji, JP;
Yoshinobu Tsujii, Uji, JP;
Takeshi Fukuda, Uji, JP;
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Chuo-ku, Tokyo, JP;
Kyoto University, Kyoto-shi, Kyoto, JP;
Abstract
Disclosed are a production process of a dye polymer having a dye content of from 1 to 50 wt %, and the dye polymer and its use. The production process includes subjecting an addition-polymerizable monomer to living radical polymerization by using, as a polymerization initiator, a dye having a polymerization initiating group enabling the living radical polymerization. The dye polymer and a composition of the dye polymer and a pigment are useful as good coloring agents for various products or articles. The colored products or articles are high in transparency, and are provided with high added value. The dye polymer can also be used as a dispersant for pigments, thereby making it possible to afford pigment dispersions excellent in dispersion properties and dispersion stability.