Nippon Kayaku Kabushiki Kaisha

Masahiro Naitou

Daisuke Kobayashi

Yuichiro Matsuo

Takaaki Kurata

Kiyohisa Tokuda

Go Mizutani

Hayato Motohashi

Kikuo Imazumi

Hideaki Kametani

The present invention relates to an ultraviolet-curable adhesive to be used for laminating a first optical base material and a second optical base material having a light-shielding portion on a surface thereof to each other, the ultraviolet-curable adhesive containing (A) a specified compound represented by the following formula (1), (B) a photopolymerizable compound, and (C) a photopolymerization initiator; a cured product obtained by irradiating the adhesive with an ultraviolet ray; and an optical member having the cured product, such as a touch panel: 

Optical member and ultraviolet-curable adhesive to be used for producing the same

Disclosed is an ultraviolet-curable resin composition containing a polyurethane compound (A), a photopolymerization initiator (B), and an ethylenically unsaturated compound (C) other than the compound (A). The polyurethane compound (A) is obtained by reacting an epoxycarboxylate compound (c), which is obtained by reacting an epoxy compound (a) having two or more epoxy groups in a molecule with a monocarboxylic acid compound (b) having an ethylenically unsaturated group in a molecule, with a diisocyanate compound (d).

Resin composition for optical disk and cured product thereof

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Tokyo, Japan

Masahiro Naitou