发明名称 |
RUBBER COMPOSITION FOR CHAFER |
摘要 |
<p>There is provided a rubber composition for a chafer, enabling generation of crack in a chafer at mounting or dismounting a rim to be suppressed as well as improving durability of a bead part by improving hardness and elongation at break. Namely, the present invention provides a rubber composition for a chafer, which comprises a rubber component comprising a butadiene rubber in which syndiotactic-1,2-polybutadiene having an average primary particle diameter of not more than 100 nm is dispersed, and has a JIS-A harness of 75 to 85 and elongation at break in a tensile test of not less than 180 %.</p> |
申请公布号 |
EP1970404(A1) |
申请公布日期 |
2008.09.17 |
申请号 |
EP20060843165 |
申请日期 |
2006.12.25 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD.;UBE INDUSTRIES, LTD. |
发明人 |
OTSUKI, HIROTOSHI;WADA, TAKASHI |
分类号 |
C08L9/00;B60C1/00;B60C15/06 |
主分类号 |
C08L9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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