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Patent Searching and Data


Title:
BLOCK COPOLYMER, DISPERSING AGENT, AND PIGMENT DISPERSION COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/079659
Kind Code:
A1
Abstract:
[Problem] To provide a block copolymer which can be used as a dispersing agent, and has superior resistance to heat. [Solution] This block copolymer is characterized by having block A including a structural unit derived from a vinyl monomer having an acidic group, and block B including a structural unit represented by general formula (1) and a structural unit represented by general formula (2). [In formulae (1) and (2), R11, R12, R13, R21, and R22 each independently represent an optionally substituted linear or cyclic hydrocarbon group. Two or more of R11, R12, and R13 may be bonded together to form a cyclic structure. R21 and R22 may be bonded together to form a cyclic structure. X1 and X2 represent a divalent linking group. R14 and R23 represent a hydrogen atom or a methyl group. Y- represents at least one selected from the group consisting of aromatic dicarboxylic acid imide anions, aromatic sulfonic acid anions, aromatic phosphonic acid anions, and aromatic carboxylic acid anions.]

Inventors:
SHIMIZU Tatsuhiko (463, Kagasuno, Kawauchi-cho, Tokushima-sh, Tokushima 93, 〒7710193, JP)
UMEMOTO Hikaru (463, Kagasuno, Kawauchi-cho, Tokushima-sh, Tokushima 93, 〒7710193, JP)
Application Number:
JP2017/038717
Publication Date:
May 03, 2018
Filing Date:
October 26, 2017
Export Citation:
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Assignee:
OTSUKA CHEMICAL CO., LTD. (2-27, Otedori 3-chome Chuo-ku, Osaka-sh, Osaka 21, 〒5400021, JP)
International Classes:
C08F293/00; B01F17/52; C08F6/06; C08F8/00; C09D17/00
Domestic Patent References:
WO2015198422A12015-12-30
WO2012001945A12012-01-05
Foreign References:
JP2010079244A2010-04-08
JP2017082198A2017-05-18
Attorney, Agent or Firm:
FUTAKUCHI Osamu (Shin-Osaka Matsushima Bldg. 8F, 8-15 Nishinakajima 3-chome, Yodogawa-ku, Osaka-sh, Osaka 11, 〒5320011, JP)
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