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:
Oct. 28, 2025
Filed:
Nov. 25, 2021
Kao Corporation, Tokyo, JP;
Kazuma Mori, Wakayama, JP;
Ryo Nakanishi, Wakayama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
An aqueous ink including a pigment, a fixing resin, and water. The fixing resin includes a constitutional unit derived from (meth)acrylic acid (A), a constitutional unit derived from a cycloalkyl (meth)acrylate (B), and a constitutional unit derived from an alkyl (meth)acrylate (C) whose homopolymer has a glass transition temperature of not higher than 0° C. A content of the constitutional unit derived from the (meth)acrylic acid (A) is not less than 6% by mass and not more than 25% by mass based on the whole constitutional units of the fixing resin, a content of the constitutional unit derived from the cycloalkyl (meth)acrylate (B) is not less than 30% by mass and not more than 90% by mass based on the whole constitutional units of the fixing resin, and a glass transition temperature (Tg) of the fixing resin is not lower than −20° C. and not higher than 40° C.