To provide a rubber composition for studless tires which is mainly intended for use in a tread part of a studless tire and achieves both on-ice performance and wear resistance performance at a high level.SOLUTION: The rubber composition for studless tires contains 1-40 pts.mass of a copolymer resin (a) being an acid-modified product of a copolymer of coumarone, indene and styrene and 10-150 pts.mass of an inorganic filler, based on 100 pts.mass of a diene rubber containing 30 mass% or more of a butadiene rubber and a natural rubber.SELECTED DRAWING: None
【課題】主にスタッドレスタイヤのトレッド部に用いることを意図したスタッドレスタイヤ用ゴム組成物であって、氷上性能と耐摩耗性能とを高度に両立したスタッドレスタイヤ用ゴム組成物を提供する。【解決手段】ブタジエンゴムを30質量%以上および天然ゴムを含むジエン系ゴム100質量部に対し、クマロン、インデン、およびスチレンの共重合体の酸変性物である共重合樹脂(a)を1〜40質量部、無機充填材を10〜150質量部配合する。【選択図】なし
RUBBER COMPOSITION FOR STUDLESS TIRES
スタッドレスタイヤ用ゴム組成物
2019-05-23
Patent
Elektronische Ressource
Japanisch
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 / 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 / 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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