PROBLEM TO BE SOLVED: To provide a rubber composition containing modified farnesene polymer, that can improve the dispersibility of fillers such as carbon black or silica when used in a part of the rubber composition, and that is excellent in rolling resistance performance, steering stability resulting from the high hardness, wear resistance, and mechanical strength, and to provide a tire using the rubber composition as well as a method for producing the modified farnesene polymer.SOLUTION: There is provided a rubber composition containing 20 to 150 pts.mass of one or more of filler (B) selected from carbon black and silica, and 0.1 to 30 pts.mass of modified farnesene polymer (C) comprising a monomer unit derived from farnesene, per 100 pts.mass of one or more of rubber component (A) selected from synthetic rubber and natural rubber, and in which the modified farnesene polymer (C) satisfies the conditions (I) and (II).SELECTED DRAWING: None
【課題】ゴム組成物の一部に用いた際にカーボンブラックやシリカ等の充填剤の分散性を向上させることができる変性ファルネセン重合体を含有するゴム組成物であって、転がり抵抗性能、高硬度に起因する操縦安定性、耐摩耗性及び機械強度に優れるゴム組成物、及び前記ゴム組成物を用いたタイヤ、並びに前記変性ファルネセン重合体の製造方法を提供する。【解決手段】合成ゴム及び天然ゴムから選ばれる1種以上のゴム成分(A)100質量部に対して、カーボンブラック及びシリカから選ばれる1種以上のフィラー(B)を20〜150質量部、及びファルネセン由来の単量体単位を含む変性ファルネセン重合体(C)を0.1〜30質量部含有するゴム組成物であり、前記変性ファルネセン重合体(C)が、条件(I)及び(II)を満たすゴム組成物。【選択図】なし
RUBBER COMPOSITION AND TIRE CONTAINING MODIFIED FARNESENE POLYMER, AND METHOD FOR PRODUCING MODIFIED FARNESENE POLYMER
変性ファルネセン重合体を含むゴム組成物及びタイヤ、並びに変性ファルネセン重合体の製造方法
2016-03-22
Patent
Electronic Resource
Japanese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / 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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