Title:
AQUEOUS INK BINDER COMPONENT AND AQUEOUS INK
Document Type and Number:
WIPO Patent Application WO/2023/248492
Kind Code:
A1
Abstract:
Provided is an environment-friendly aqueous ink binder component that can form a dry coating that is an image or the like and that has excellent abrasion resistance and adhesiveness even with respect to base materials, such as polypropylene-based base materials and polyethylene-based base materials, on which it is generally difficult to form a coating that has high adhesiveness. This aqueous ink binder component is an A-B block copolymer that includes a structural unit derived from a biological material-derived methacrylate in an amount not less than 80 mass% and a structural unit derived from isobornyl methacrylate in an amount not less than 40 mass%, that has a number average molecular weight of 10,000-23,000, an acid value of 25-100 mgKOH/g, and a glass transition temperature of 90°C or higher, and that includes a water-insoluble polymer chain A and a polymer chain B that includes a structural unit derived from a methacrylic acid.
Inventors:
OKUBO TOSHIE (JP)
NISHI SUZUKA (JP)
YOSHIKAWA SACHIO (JP)
KAMABAYASHI JUN (JP)
SHIMANAKA HIROYUKI (JP)
NISHI SUZUKA (JP)
YOSHIKAWA SACHIO (JP)
KAMABAYASHI JUN (JP)
SHIMANAKA HIROYUKI (JP)
Application Number:
PCT/JP2022/039022
Publication Date:
December 28, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM (JP)
International Classes:
C09D11/30; B41J2/01; B41M5/00
Foreign References:
| JP2022073013A | 2022-05-17 | |||
| JP2012036251A | 2012-02-23 | |||
| JP2004143440A | 2004-05-20 | |||
| JP6967168B1 | 2021-11-17 |
Attorney, Agent or Firm:
KONDO Rieko et al. (JP)
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