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:
Sep. 26, 2006
Filed:
Dec. 22, 2003
Makoto Sakakibara, Wakayama, JP;
Nobushige Tanaka, Wakayama, JP;
Ryuma Mizushima, Wakayama, JP;
Kenji Kaida, Tokyo, JP;
Takehiro Tsutsumi, Wakayama, JP;
Makoto Sakakibara, Wakayama, JP;
Nobushige Tanaka, Wakayama, JP;
Ryuma Mizushima, Wakayama, JP;
Kenji Kaida, Tokyo, JP;
Takehiro Tsutsumi, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
A water-based ink containing an aqueous dispersion of water-insoluble vinyl polymer particles containing a pigment, wherein the water-insoluble vinyl polymer is prepared by copolymerizing a monomer mixture containing (a) a monomer having a salt-forming group, (b) a monomer having a long-chain alkyl group, (c) a macromer, (d) a monomer having a polyoxyalkylene group, and (e) a monomer copolymerizable with the monomer having a salt-forming group (a), the monomer having a long-chain alkyl group (b), the macromer (c) and the monomer having a polyoxyalkylene group (d). The water-based ink can be suitably used, for instance, as a water-based ink for inkjet recording and the like.