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:
Nov. 10, 2015
Filed:
Apr. 06, 2012
Hiroyuki Buei, Kitamoto, JP;
Yoshinosuke Shimamura, Ageo, JP;
Shinichi Okada, Ina-machi, JP;
Kenji Nasu, Akashi, JP;
Takashi Yoshinari, Kakogawa, JP;
Hiroyuki Buei, Kitamoto, JP;
Yoshinosuke Shimamura, Ageo, JP;
Shinichi Okada, Ina-machi, JP;
Kenji Nasu, Akashi, JP;
Takashi Yoshinari, Kakogawa, JP;
DIC CORPORATION, Tokyo, JP;
Abstract
A resin for aqueous pigment dispersion that allows the production of an aqueous pigment dispersion for ink jet recording that contains only a few coarse particles and has excellent ejection stability, an aqueous pigment dispersion containing the resin for aqueous pigment dispersion, an ink jet recording ink, and a method for producing an aqueous pigment dispersion. A resin for aqueous pigment dispersion produced by copolymerization of a composition that contains (a) one or two or more compounds selected from the group consisting of alkenylsuccinic acids, alkenylsuccinic anhydrides, alkylsuccinic acids, and alkylsuccinic anhydrides, and (b) a styrene monomer, wherein the (a) component constitutes 5% by mass or more and the (b) component constitutes 30% by mass or more of the total amount of all the monomer component(s) and the (a) component of the composition.