| 摘要 |
PROBLEM TO BE SOLVED: To provide a molded item of a rubber composition which is excellent in chlorine-resistant deterioration performance and can prolong the life of a rubber product made of this rubber composition to be used in a position where it is brought into contact with water containing residual chlorine. SOLUTION: This is a molded item of a rubber composition comprising an ethylene-propylene rubber, a polybutene and a vulcanizing agent, excluding ones containing a white carbon, such as a packing, an O-ring and an expansion joint to be used in contact with water containing chlorine. COPYRIGHT: (C)2004,JPO&NCIPI
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