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AssigneeSumitomo Rubber Industries, Ltd.
InventorsMakoto Sakuraoka, Tetuo Morita, Shinichi Nakade, Akihiro Nakahara, Tomoko Noyama, Kimihiro Tanida
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A material for making marine structure comprises a rubber composition. The rubber composition contains a metal salt of .alpha., .beta.-unsaturated fatty acid and is vulcanized in a mold into a predetermined configuration. The strength of the rubber composition is anisotropic and in particular its elastic modulus is anisotropic. The direction in which the strength of the rubber composition is high is set in the direction in which stress is applied by waves. Thus, the marine-structural material is resistant to waves and tide. The rubber composition contains short fibers which are oriented in a certain direction to increase the anisotropy of the rubber composition.
A portion of a fish-cultivating frame or a pontoon frame, comprising a rubber composition which has been shaped by vulcanization into a predetermined configuration, wherein said rubber composition comprises a base rubber and in an amount sufficient to co-crosslink said rubber, a metal salt of an .alpha., .beta.-unsaturated fatty acid.
Dependencies are inferred from the claim text.