Nichiban Company Limited

Terumi Nakata

Yasuaki Kitazaki

Hiroyasu Miyasaka

Takafumi Yamada

Hiroo Sato

Kunio Maeda

To prevent the growth of aquatic animals and plants on the surfaces of underwater structures, the surfaces are covered with a protective adhesive sheet comprised of a copper-nickel alloy plate having a weight ratio of copper:nickel in the range of 100:0 to 80:20, a primer layer formed on the alloy plate, and a pressure-sensitive adhesive layer formed on the primer layer. Prior to applied the adhesive sheet, the surface to be protected is preferably cleaned and coated with a primer of the same composition as that of the primer layer of the adhesive sheet.

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Tokyo, Japan

Terumi Nakata