Title:
WATER-BASED RESIN COMPOSITION, WATER-BASED PAINT, AND PLASTIC MOLDED ARTICLE PAINTED BY SAID WATER-BASED PAINT
Document Type and Number:
WIPO Patent Application WO/2021/070613
Kind Code:
A1
Abstract:
Provided is a water-based resin composition containing a polycarbonate-modified acrylic resin, which is a reaction product of a polycarbonate diol (A) having 1,4-butanediol as an essential raw material and an unsaturated monomer mixture (B) containing methyl methacrylate, an unsaturated monomer (b1) having a hydroxyl group, an unsaturated monomer (b2) having a carboxyl group, and an unsaturated monomer (b3) having an alicyclic structure as essential components, and an aqueous medium, wherein the water-based resin composition is characterized in that the proportion of the unsaturated monomer (b3) in the unsaturated monomer mixture (B) is in the 3-60 mass% range. This water-based resin composition has high adhesiveness to plastic substrates and can obtain a coating film having excellent wet adhesion resistance and fragrance resistance, and is therefore suitable for use in water-based paints and plastic molded articles.
Inventors:
NAKAMOTO KAZUKI (JP)
DOHI KENTA (JP)
MUKAI TAKASHI (JP)
DOHI KENTA (JP)
MUKAI TAKASHI (JP)
Application Number:
PCT/JP2020/035892
Publication Date:
April 15, 2021
Filing Date:
September 24, 2020
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08F283/02; C08F2/44; C08L51/08; C09D5/02; C09D151/08
Domestic Patent References:
| WO1996001860A1 | 1996-01-25 | |||
| WO2013157479A1 | 2013-10-24 |
Foreign References:
| JP2006249432A | 2006-09-21 | |||
| JP2015509989A | 2015-04-02 | |||
| JPS6249212B2 | 1987-10-19 |
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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