Title:
INKJET AQUEOUS PIGMENT DISPERSION, INK COMPOSITION, INKJET RECORDING METHOD, AND PIGMENT
Document Type and Number:
WIPO Patent Application WO/2013/115071
Kind Code:
A1
Abstract:
Provided are: an inkjet aqueous pigment dispersion which achieves high pigment concentration, exhibits favorable redispersion properties after drying, and does not exhibit changes in ink properties even when stored for a long time; and an ink composition using the aqueous pigment dispersion. This inkjet aqueous pigment dispersion contains a pigment (I), a liquid medium (II), and a polymer dispersion agent (III). The polymer dispersion agent (III) is an A-B block polymer obtained by copolymerizing via a living radical polymerization method, by using a mixture of an organic tellurium compound represented by formula (1) and an organic ditellurium compound represented by formula (2), or the like, as a polymerization initiator. Therein, the monomer for configuring the A block is at least one type of monomer represented by formula (3), and the monomer for configuring the B block is benzyl methacrylate and/or benzyl acrylate.
Inventors:
KAWAGUCHI AKIRA (JP)
KUWAHARA AKIO (JP)
KUWAHARA AKIO (JP)
Application Number:
PCT/JP2013/051507
Publication Date:
August 08, 2013
Filing Date:
January 24, 2013
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
International Classes:
C09D11/00; B41J2/01; B41M5/00
Domestic Patent References:
| WO2004014962A1 | 2004-02-19 | |||
| WO2010013651A1 | 2010-02-04 | |||
| WO2004014962A1 | 2004-02-19 |
Foreign References:
| JP2011225834A | 2011-11-10 | |||
| JP2006169345A | 2006-06-29 | |||
| JP2011252092A | 2011-12-15 | |||
| JP2012072354A | 2012-04-12 | |||
| JP3534395B2 | 2004-06-07 | |||
| JP4016483B2 | 2007-12-05 | |||
| JP4078679B2 | 2008-04-23 | |||
| JP2010013651A | 2010-01-21 | |||
| JP2675956B2 | 1997-11-12 | |||
| JP3839829B2 | 2006-11-01 |
Other References:
OTSUKA CHEMICAL CO., LTD. ET AL.: "Advanced Polymer Materials Synthesized by New Living Radical Polymerization Method", SHIKIZAI KOENKAI -SHIKIZAI KANREN NO HITSUYO CHISHIKI TO SAISHIN NO WADAI, 23 October 2008 (2008-10-23), pages 19 - 25, XP008174566
Y. KWAK ET AL.: "Kinetic Study on Role of Ditelluride in Organotellurium-Mediated Living Radical Polymerization (TERP)", MACROMOLECULES, vol. 40, 2007, pages 1881 - 1885, XP055081551
See also references of EP 2810995A4
Y. KWAK ET AL.: "Kinetic Study on Role of Ditelluride in Organotellurium-Mediated Living Radical Polymerization (TERP)", MACROMOLECULES, vol. 40, 2007, pages 1881 - 1885, XP055081551
See also references of EP 2810995A4
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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Claims:
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