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:
Mar. 11, 2008
Filed:
Mar. 31, 2004
Yoshinori Hama, Wakayama, JP;
Norio Ueyama, Wakayama, JP;
Yoshinori Hama, Wakayama, JP;
Norio Ueyama, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
A process for preparing an aqueous dispersion of a pigment, comprising kneading a mixture containing a pigment, a polymer having a salt-forming group, a neutralizing agent for neutralizing the polymer having a salt-forming group, an organic solvent and water, wherein the concentration of the solid matter is 50 to 80% by weight; adding water and/or an organic solvent to the resulting kneaded mixture to dilute the mixture; and dispersing the solid matter in the resulting diluted mixture; and a water-based ink comprising the aqueous dispersion of a pigment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile