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. 17, 2009
Filed:
Apr. 06, 2005
Takahiko Matsui, Kita-ku, JP;
Hiroaki Ohno, Kita-ku, JP;
Takashi Yoneda, Kita-ku, JP;
Yasuo Shirasaki, Saitama, JP;
Takahiko Matsui, Kita-ku, JP;
Hiroaki Ohno, Kita-ku, JP;
Takashi Yoneda, Kita-ku, JP;
Yasuo Shirasaki, Saitama, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A novel azo compound represented by the following Formula (1) wherein A represents the following Formula (2) and is located preferably in a position meta or para to the azo group; Rand Reach independently represents hydrogen, carboxy, sulfo, nitro, Calkoxy, etc.; Rand Reach independently represents hydrogen, halogeno, cyano, carboxy, sulfo, nitro, Calkyl, hydroxy, or Calkoxy; and n is 0 or 1. [In the Formula (2), Rrepresents cyano, carboxy, Calky, Calkoxycarbonyl, or phenyl; and R, R, and Reach independently represents hydrogen, halogeno, cyano, carboxy, sulfo, nitro, Calkyl, Calkoxy, or acylamino.] The compound is useful as a black dye, especially one for ink compositions for, e.g., inkjet prints. Also provided are: an ink composition which contains the compound and has excellent storage stability; and a print obtained through recording with the ink. The print is excellent in light resistance, ozone resistance, fastness to moisture, etc.