Kimoto Co, Ltd.

Sakai Heavy Industries, Ltd.

Yukio Kishi

Masuo Koyama

Masato Saito

A hard coat layer on which adhered fingerprints are inconspicuous is provided. The hard coat layerconsists of a cured product. The cured product is formed by curing a curable composition by irradiating it with an ultraviolet ray. The curable composition contains a curable resin. The curable resin contains reactive monomers. The reactive monomers contain an isocyanuric acid derivative. The isocyanuric acid derivative is preferably tri(meth)acrylate of an ethylene oxide and &#x3b5;-caprolactone adduct of isocyanuric acid.

Curable composition, cured product and laminate

Cavitation is produced through injection of pressurized water from an injection outlet of an injection nozzle 17 toward the pavement surface in liquid of a liquid storage part T formed on the pavement surface. A clogging object in a cavity of a pavement is isolated by impactive force of the cavitation, and the isolated clogging object is removed by suction with water.

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Saitama, Japan

Yukio Kishi