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:
Jun. 06, 2006
Filed:
Apr. 01, 2002
Hirokazu Kitayama, Kita-ku, JP;
Yasuo Shirasaki, Saitama, JP;
Toru Tabei, Kitamoto, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
An aqueous ink composition which comprises a compound represented by the formula (1) or the salt thereof: (1) wherein Rand Rindependently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkanoylamino group, an alkoxyalkoxy group, a sulfonic acid group, a carboxyl group or an ureido group, m and n independently represent 1 or 2, and Mrepresents a cation from a hydrogen atom, an alkali metal, an alkaline earth metal or an organic amine, or an ammonium ion. The composition has a hue and clarity suitable for the ink-jet recording, and can provide a recorded matter which is excellent in light resistance, water resistance and moisture resistance and can be controlled with respect to the degree of the discoloration or fading by the action of ozone.