Title:
DISPERSING AGENT, METHOD FOR PRODUCING SAME AND PIGMENT COMPOSITION USING SAME
Document Type and Number:
WIPO Patent Application WO/2007/052687
Kind Code:
A1
Abstract:
Disclosed is a dispersing agent which contains a carboxyl group-containing unit
(G) represented by the general formula (1) below in the main chain of a vinyl polymer
on an average from 0.3 to 3.0 units per one vinyl polymer molecule. Also disclosed
are a method for producing such a dispersing agent and a pigment composition containing
such a dispersing agent. By using a small amount of this dispersing agent, there
can be obtained a dispersion having excellent dispersibility, fluidity and
storage stability. (1) [In the formula, Y1 represents a group represented
by the following formula (2): (2) (wherein two or three of A1-A3
represent -C(=O)OH and k represents 1 or 2) or a group represented by the following
formula (3): (3) (wherein two or three of A5-A7 represent
-C(=O)OH).]
Inventors:
MIKAMI JOJI (JP)
ARIYOSHI YASUSHI (JP)
TACHIBANA TOMOKO (JP)
INAGAKI DAI (JP)
ARIYOSHI YASUSHI (JP)
TACHIBANA TOMOKO (JP)
INAGAKI DAI (JP)
Application Number:
PCT/JP2006/321826
Publication Date:
May 10, 2007
Filing Date:
November 01, 2006
Export Citation:
Assignee:
TOYO INK MFG CO (JP)
MIKAMI JOJI (JP)
ARIYOSHI YASUSHI (JP)
TACHIBANA TOMOKO (JP)
INAGAKI DAI (JP)
MIKAMI JOJI (JP)
ARIYOSHI YASUSHI (JP)
TACHIBANA TOMOKO (JP)
INAGAKI DAI (JP)
International Classes:
C09K23/52; C09B67/20; C09D7/45; C09D17/00
Foreign References:
| JP2003277673A | 2003-10-02 | |||
| JPH01141968A | 1989-06-02 | |||
| JPS61163959A | 1986-07-24 | |||
| JP2004168975A | 2004-06-17 |
Attorney, Agent or Firm:
MORITA, Kenichi (Itabashi-chuo Bldg. 67-8, Itabashi 2-chom, Itabashi-ku Tokyo 04, JP)
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