Title:
DISPERSANT AND AQUEOUS COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/084848
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a dispersant which provides excellent dispersibility and which does not deteriorate water resistance of a resultant coating film even when the dispersant is added to an aqueous coating agent. The present invention is a dispersant characterized by comprising: (A) a styrene-maleic acid organic ammonium salt copolymer; and (B) an alkylene oxide (the number of carbon atoms: 2-4, the amount of alkylene oxide added: 3-50 mol) adduct of at least one active hydrogen compound (the number of carbon atoms: 4-18) selected from the group consisting of alcohols, carboxylic acids, amines, and amides, wherein the active hydrogen compound has a branched alkyl chain having 4-18 carbon atoms. The constituent molar ratio (s:m) between styrene units (s) and maleic acid ammonium salt units (m) constituting the styrene-maleic acid ammonium salt copolymer is preferably 80:20 to 40:60. The content weight ratio (A:B) between the styrene-maleic acid ammonium salt copolymer (A) and the polyoxyalkylene compound (B) is preferably 10:90 to 90:10.
Inventors:
KITAMURA TAKUMI (JP)
Application Number:
PCT/JP2023/032383
Publication Date:
April 25, 2024
Filing Date:
September 05, 2023
Export Citation:
Assignee:
SAN NOPCO KK (JP)
International Classes:
C09K23/52; C09D5/02; C09D7/45; C09D201/00; C09K23/42
Domestic Patent References:
| WO2022044525A1 | 2022-03-03 | |||
| WO2023286481A1 | 2023-01-19 |
Foreign References:
| JPH03250077A | 1991-11-07 | |||
| JP2003226892A | 2003-08-15 | |||
| JPH08120101A | 1996-05-14 |
Attorney, Agent or Firm:
SAKURAI Ken-ichi (JP)
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