Title:
BLOCK COPOLYMER, DISPERSANT, AND PIGMENT DISPERSION COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2016/132863
Kind Code:
A1
Abstract:
Provided are: a block copolymer having acidic groups, said copolymer capable of yielding a dispersion composition having excellent dispersion stability when used as a dispersant; a dispersant containing this block copolymer; and a pigment dispersion composition in which the same is used. An ABA block copolymer comprising an A and B blocks, wherein the acid value is 30-250 mg KOH/g and the B block contains a structural unit derived from a vinyl monomer having acidic groups.
Inventors:
MASUMOTO SATORU (JP)
Application Number:
PCT/JP2016/052675
Publication Date:
August 25, 2016
Filing Date:
January 29, 2016
Export Citation:
Assignee:
OTSUKA CHEMICAL CO LTD (JP)
International Classes:
C08F293/00; C08L53/00; C09B67/20; C09D17/00; C09K23/52
Domestic Patent References:
| WO2010013651A1 | 2010-02-04 |
Foreign References:
| JP2013216714A | 2013-10-24 | |||
| JP2014015541A | 2014-01-30 | |||
| JPH05179183A | 1993-07-20 | |||
| JP2010209244A | 2010-09-24 |
Other References:
See also references of EP 3260480A4
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
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