PROBLEM TO BE SOLVED: To provide a branched conjugated diene copolymer that enhances both of abrasion resistance and grip performance to high levels and also exhibits excellent processability, a rubber composition comprising the branched conjugated diene copolymer, and a pneumatic tire made with the rubber composition.SOLUTION: A branched conjugated diene copolymer is obtained by the copolymerization of farnesene of 5 to 45 wt.%, 1,3-butadiene of 30 to less than 70 wt.% and styrene of 25 to less than 60 wt.%.SELECTED DRAWING: None
【課題】耐磨耗性およびグリップ性能をともに高いレベルにまで向上せしめ、かつ、加工性においても優れた特性を示す分枝共役ジエン共重合体、該分枝共役ジエン共重合体を含んでなるゴム組成物、および、該ゴム組成物を用いて作製した空気入りタイヤを提供すること。【解決手段】ファルネセン5〜45重量%と1,3−ブタジエン30〜70重量%未満とスチレン25〜60重量%未満とを共重合して得られる分枝共役ジエン共重合体。【選択図】なし
BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE
分枝共役ジエン共重合体、ゴム組成物および空気入りタイヤ
2017-06-15
Patent
Elektronische Ressource
Japanisch
IPC: | C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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