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:
Jul. 07, 2026
Filed:
Dec. 13, 2022
Seiko Epson Corporation, Tokyo, JP;
Toru Saito, Yamagata, JP;
Toshiyuki Yoda, Matsumoto, JP;
Yoshinobu Yoshida, Shiojiri, JP;
Kiyoshi Nakamura, Matsumoto, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A radiation curable ink jet composition contains: a dispersant; a polymerizable compound; and a hindered amine compound represented by the following general formula (1) or (2), the radiation curable ink jet composition has a viscosity of 50 mPa·s or less at 25° C., and the dispersant has an acid value of 30 mgKOH/g or more, In the formula (1), Rrepresents H—, O═, or R—CO—, and Rrepresents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aromatic ring, In the formula (2), Rrepresents —OCO—R—COO—, and Rrepresents an alkyl group having 1 to 12 carbon atoms.