Invention Grant
- Patent Title: Ink jet ink, ink cartridge, and ink jet recording method
- Patent Title (中): 喷墨墨水，墨盒和喷墨记录方法
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Application No.: US13425293Application Date: 2012-03-20
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Publication No.: US08690307B2Publication Date: 2014-04-08
- Inventor: Kouichirou Okumura , Kenichi Shiiba , Daiji Okamura , Kousuke Yamasaki , Kenji Moribe , Hiromitsu Kishi
- Applicant: Kouichirou Okumura , Kenichi Shiiba , Daiji Okamura , Kousuke Yamasaki , Kenji Moribe , Hiromitsu Kishi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA Inc. IP Division
- Priority: JP2011-075883 20110330; JP2011-075885 20110330
- Main IPC: C09D11/00
- IPC: C09D11/00
Abstract:
An ink jet ink contains a polyurethane polymer and a pigment. The polyurethane polymer has units derived from a polyisocyanate, a polyether polyol having no acid group, and a diol having an acid group. The pigment is dispersed using a polymer other than the polyurethane polymer. The molar ratio of the percentage of the urethane bond in the polyurethane polymer to the percentage of the urea bond in the polyurethane polymer is 85.0/15.0 or more and 100.0/0 or less.
Public/Granted literature
- US20120249663A1 INK JET INK, INK CARTRIDGE, AND INK JET RECORDING METHOD Public/Granted day:2012-10-04
Information query
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