Dic Corporation

Chisato Kuriyama

Mitsuru Kitada

Sadamu Nagahama

Kenji Nagao

Ryuichi Matsuoka

Provided is an aqueous resin composition in which a vinyl ester resin and a urethane resin having an aromatic ring are dispersed in an aqueous medium, in which the vinyl ester resin is obtained by allowing at least one epoxy resin selected from the group consisting of a novolak type epoxy resin and a bisphenol type epoxy resin to react with a compound having an acid group and a polymerizable unsaturated group, and the urethane resin is obtained by allowing polyol containing polyol having an aromatic ring and polyol having a hydrophilic group to react with a polyisocyanate. A primer using the aqueous resin composition is able to considerably improve adhesiveness between a substrate and a cured coating film of an active energy ray curable composition, even when the substrate is a sparingly adhesive substrate.

Aqueous resin composition, laminate produced using same, and image display device

An object of the present invention is to provide a method for producing a binder for inks and for use in producing an inkjet printing ink that has both good ink dischargeability and blend stability. A method for producing a binder for inkjet printing inks, the binder containing a hydrophilic-group-containing urethane resin (A), an acetylene compound (B), and an aqueous medium (C), includes step (1) of allowing Ga polyol (a1) containing a hydrophilic-group-containing polyol to react with a polyisocyanate (a2) in an organic solvent or in the absence of a solvent and feeding the organic solvent as needed to prepare an organic solvent solution [I], step (2) of mixing the organic solvent solution [I] with the acetylene compound (B) and the aqueous medium (C) to prepare a mixture [II], and step (3) of removing the organic solvent contained in the mixture [II].

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Osaka, Japan

Chisato Kuriyama