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:
Sep. 02, 2014
Filed:
Aug. 05, 2009
Yoshikazu Murakami, Chuo-ku, JP;
Hiroyuki Shimanaka, Chuo-ku, JP;
Toshiyuki Hitotsuyanagi, Chuo-ku, JP;
Shinya Tsuchida, Chuo-ku, JP;
Atsushi Goto, Uji, JP;
Yoshinobu Tsujii, Uji, JP;
Takeshi Fukuda, Uji, JP;
Yoshikazu Murakami, Chuo-ku, JP;
Hiroyuki Shimanaka, Chuo-ku, JP;
Toshiyuki Hitotsuyanagi, Chuo-ku, JP;
Shinya Tsuchida, 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 is a pigment dispersion containing at least a pigment, a liquid medium and a high-molecular dispersant. The high-molecular dispersant is a block polymer represented by A-B or A-B-C, in which A, B and C each represent a polymer block and the A and C blocks may be the same or different. The block polymer and its production process are also disclosed. The high-molecular dispersant is free of problems of a smell, coloration, a heavy metal and cost, and its use can provide a pigment dispersion excellent in the dispersion stability of a pigment.