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Title:
EMULSION BINDER, AQUEOUS PIGMENT INK FOR INKJET CONTAINING SAME, AND METHOD FOR PRODUCING EMULSION BINDER
Document Type and Number:
WIPO Patent Application WO/2012/124212
Kind Code:
A1
Abstract:
The present invention is an emulsion binder which contains an A-B block copolymer. The A-B block copolymer has a number average molecular weight of 5,000-100,000 and a molecular weight distribution (weight average molecular weight/number average molecular weight) of 1.7 or less. The A-polymer block has an acid value of 0-30 mgKOH/g and a glass transition temperature of 60˚C or less, while the B-polymer block has an acid value of 75-250 mgKOH/g. The A-B block copolymer is neutralized with an alkaline substance and self-emulsified into an aqueous medium, so that emulsion particles having an average particle diameter of 30-300 nm are formed.

Inventors:
SHIMANAKA HIROYUKI (JP)
MURAKAMI YOSHIKAZU (JP)
AOYAGI SHINICHIRO (JP)
GOTO ATSUSHI (JP)
KAJI HIRONORI (JP)
Application Number:
PCT/JP2011/077293
Publication Date:
September 20, 2012
Filing Date:
November 28, 2011
Export Citation:
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Assignee:
DAINICHISEIKA COLOR CHEM (JP)
UNIV KYOTO (JP)
SHIMANAKA HIROYUKI (JP)
MURAKAMI YOSHIKAZU (JP)
AOYAGI SHINICHIRO (JP)
GOTO ATSUSHI (JP)
KAJI HIRONORI (JP)
International Classes:
C08L53/00; B41J2/01; B41M5/00; C08F4/00; C08F6/02; C08F265/06; C09D11/00; C09D11/322
Domestic Patent References:
WO2010013651A12010-02-04
WO2009076567A22009-06-18
Foreign References:
JP2008231130A2008-10-02
JP2010018663A2010-01-28
JP2002194037A2002-07-10
JP2005179679A2005-07-07
JP2008019431A2008-01-31
JP2003520279A2003-07-02
JP2004197090A2004-07-15
JP2005179679A2005-07-07
Other References:
"POLYMER HANDBOOK"
See also references of EP 2687561A4
Attorney, Agent or Firm:
SUZUKI TOSHIHIRO (JP)
Toshihiro Suzuki (JP)
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