Invention Grant
- Patent Title: Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and toner
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Application No.: US14914588Application Date: 2014-08-27
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Publication No.: US09834683B2Publication Date: 2017-12-05
- Inventor: Chiaki Nishiura , Yuki Tsujii , Yasuaki Murai , Takayuki Toyoda , Waka Hasegawa , Masanori Seki , Masashi Kawamura , Masashi Hirose , Ayano Mashida
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2013-178556 20130829
- International Application: PCT/JP2014/073115 WO 20140827
- International Announcement: WO2015/030260 WO 20150305
- Main IPC: G03G9/09
- IPC: G03G9/09 ; C09B67/46 ; C08F8/30 ; C09B67/22 ; C09B69/10 ; G03G9/087 ; C09D11/037 ; C09D11/106 ; C08F212/08 ; C08F8/14
Abstract:
The present invention provides a compound and a pigment dispersant, each of which improves the dispersibility of various types of pigments in a non-aqueous solvent and also provides a pigment composition, a pigment dispersion, and a toner, each of which has a preferable coloring power. The compound includes a polymer which has a monomer unit having a specific structure and also includes a specific partial structure.
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