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:
Jan. 27, 2015
Filed:
Oct. 31, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Takahiro Mori, Inagi, JP;
Satoru Kobayashi, Yokohama, JP;
Shinichi Sakurada, Tokyo, JP;
Yutaka Kurabayashi, Higashimurayama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet ink containing a coloring material and a polymer particle, wherein the polymer particle has a core portion and a shell portion, the shell portion contains a copolymer A having a unit derived from a compound (a1) represented by a general formula (1) of R—(CHO)—Rwhere Ris at least one selected from a vinyl group, an allyl group, an acryloyl group and a methacryloyl group, Ris a hydrogen atom or an alkyl group, and n is 30-100, and a unit derived from an α,β-unsaturated hydrophobic compound (a2), a proportion of the unit derived from the compound (a1) to the copolymer A is 50-90% by mass or less, a proportion of the unit derived from the compound (a2) to the copolymer A is 10-50% by mass or less, and the core portion contains a polymer of an α,β-unsaturated hydrophobic compound (b).