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. 15, 2013
Filed:
Oct. 24, 2005
Masahiro Yatake, Nagano-ken, JP;
Motoki Masuda, Nagano-ken, JP;
Jyun Ito, Nagano-ken, JP;
Yasuhiro Oki, Nagano-ken, JP;
Hiroko Hayashi, Nagano-ken, JP;
Masahiro Yatake, Nagano-ken, JP;
Motoki Masuda, Nagano-ken, JP;
Jyun Ito, Nagano-ken, JP;
Yasuhiro Oki, Nagano-ken, JP;
Hiroko Hayashi, Nagano-ken, JP;
Seiko Epson Corporation, , JP;
Abstract
The present invention aims to provide an ink for ink jet recording that is excellent in storage stability and discharge stability and attains high coloration on regular paper or gloss paper and high glossiness on gloss paper. The ink for ink jet recording of the invention includes: water; and a pigment dispersed by using a polymer which is obtained by polymerizing at least 50% by weight or more of benzylacrylate and 15% by weight or less of (meth)acrylic acid as components of the polymer and has an acid value of no less than 50 mgKOH/g and no more than 120 mgKOH/g and a weight average molecular weight of no less than 10000 and no more than 120000.