Title:
EMULSION COMPOSITION, AQUEOUS COATING AGENT, AND METHOD FOR PRODUCING EMULSION COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/084805
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide: an emulsion composition that realizes excellent heat-sealability; an aqueous coating agent containing said emulsion composition; and a method for producing the emulsion composition. [Solution] This emulsion composition is characterized by comprising a copolymer (B) that satisfies all of conditions (1)-(5). (1) Including at least 90 mass% of a (meth)acrylic acid ester in a structural unit of the copolymer (B).
(2) Including 35-55 mass% of a methyl methacrylate as a structural unit of the copolymer (B).
(3) Including 15-55 mass% of butyl acrylate as a structural unit of the copolymer (B).
(4) The glass transition temperature (Tg) as calculated from the proportion of monomers constituting the copolymer (B) being -20°C to 15°C.
(5) The molecular weight distribution (weight average molecular weight Mw/number average molecular weight Mn) of the copolymer (B) being in a range of 9-15.
Inventors:
SATO KUMI (JP)
FUJIWARA YASUSHI (JP)
FUJIWARA YASUSHI (JP)
Application Number:
PCT/JP2022/011909
Publication Date:
May 19, 2023
Filing Date:
March 16, 2022
Export Citation:
Assignee:
SEIKO PMC CORP (JP)
International Classes:
C09J133/04; C08L33/06; C09K3/10; D21H19/20
Foreign References:
| JP2016505698A | 2016-02-25 | |||
| JPH08325311A | 1996-12-10 | |||
| JP2020070304A | 2020-05-07 | |||
| JPH1129608A | 1999-02-02 | |||
| JP2015511976A | 2015-04-23 |
Attorney, Agent or Firm:
TSUTA Yasuhiro (JP)
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