PROBLEM TO BE SOLVED: To provide a rubber composition that has excellent workability as a rubber composition and can give a rubber crosslinked product having excellently low heat build-up properties.SOLUTION: The present invention provides a rubber composition comprising a cyclic olefin ring-opening polymer (A) having an oxysilyl group at a polymer chain terminal, an isocyanate group-containing silane coupling agent (B), and carbon black (C). The rubber composition may further comprise a crosslinking agent. The present invention also provides a rubber crosslinked product obtained by cross-linking the rubber composition, and a tire.SELECTED DRAWING: None
【課題】ゴム組成物としての加工性に優れ、かつ、優れた低発熱性を有するゴム架橋物を与えることのできるゴム組成物の提供。【解決手段】重合体鎖末端にオキシシリル基を有する環状オレフィン開環重合体(A)と、イソシアネート基含有シランカップリング剤(B)と、カーボンブラック(C)とを含有するゴム組成物。架橋剤を更に含有するゴム組成物。前記ゴム組成物を架橋してなるゴム架物及びタイヤ。【選択図】なし
RUBBER COMPOSITION, RUBBER CROSSLINKED PRODUCT AND TIRE
ゴム組成物、ゴム架橋物およびタイヤ
2017-07-06
Patent
Elektronische Ressource
Japanisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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