To provide a rubber composition for fenders that is excellent in adhesion to iron, thermal aging resistance and stain resistance, and provide a fender.SOLUTION: A rubber composition for fenders contains a rubber component containing natural rubber and butadiene rubber, and carbon black. A content of butadiene rubber is 40 mass% or less in a total amount of the rubber component, a total content of natural rubber and butadiene rubber 90 mass% or more in the total amount of the rubber component, and a content of carbon black is 30-60 pts.mass relative to 100 pts.mass of the rubber component. The rubber composition for fenders is substantially free of an aroma oil with CA% of 25% or more, obtained by composition analysis by the Kurtz method, and is also substantially free of an amine age resister. There is also provided a fender formed using the rubber composition for fenders.SELECTED DRAWING: Figure 1
【課題】鉄との接着性、耐熱老化性及び耐汚染性が優れる、防舷材用ゴム組成物、並びに、防舷材を提供することを目的とする。【解決手段】天然ゴム及びブタジエンゴムを含むゴム成分と、カーボンブラックとを含有し、ブタジエンゴムの含有量がゴム成分全量中の40質量%以下であり、天然ゴム及びブタジエンゴムの合計含有量がゴム成分全量中の90質量%以上であり、カーボンブラックの含有量がゴム成分100質量部に対して30~60質量部であり、Kurtz法による組成分析で得られたCA%が25%以上であるアロマオイルを実質的に含有せず、アミン系老化防止剤を実質的に含有しない、防舷材用ゴム組成物、並びに、防舷材用ゴム組成物を用いて形成した防舷材。【選択図】図1
RUBBER COMPOSITION FOR FENDERS AND FENDER
防舷材用ゴム組成物及び防舷材
2022-08-10
Patent
Electronic Resource
Japanese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / E02B HYDRAULIC ENGINEERING , Wasserbau / F16F SPRINGS , Federn |
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