| 摘要 |
Cured elastomers having oil resistance as well as well-balanced physical properties including high mechanical strength with excellent low-temperature resistance, heat resistance, and rubber elasticity. The elastomers hase a rubber hardness in accordance with JIS A of 95° or less and an elongation at break of at least 100%, and has oil resistance to a lubricating oil which highly swells an object, the elastomer being formed by cross-linking a millable polyurethane obtained through polyaddition of polyester diol and diisocyanate.
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