STUDLESS TIRE RUBBER COMPOSITION AND STUDLESS TIRE USING SAME

To provide a studless tire rubber composition capable of improving on-ice performance without retarding a vulcanization rate.SOLUTION: There is provided a studless tire rubber composition obtained by blending (B) 45 pts.mass or less of carbon black and/or (C) 30 pts.mass or more of silica and (D) 1...

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Bibliographische Detailangaben
1. Verfasser:	TANABE YUSUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS RELATED TO TYRES METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	To provide a studless tire rubber composition capable of improving on-ice performance without retarding a vulcanization rate.SOLUTION: There is provided a studless tire rubber composition obtained by blending (B) 45 pts.mass or less of carbon black and/or (C) 30 pts.mass or more of silica and (D) 1 to 30 pts.mass of a porous silica having an average pore diameter of 3 to 30 nm based on (A) 100 pts.mass of a diene-based rubber containing a natural rubber and more than 25 pts.mass and less than 75 pts.mass of a butadiene rubber (provided that the porous silica (D) is not included in the silica (C)).SELECTED DRAWING: None 【課題】加硫速度を遅らせることなく、氷上性能を向上させ得るスタッドレスタイヤ用ゴム組成物を提供する。【解決手段】天然ゴムを含むとともにブタジエンゴムを２５質量部を超えかつ７５質量部未満含む（Ａ）ジエン系ゴム１００質量部に対し、（Ｂ）カーボンブラックを４５質量部以下および／または（Ｃ）シリカを３０質量部以上、および（Ｄ）平均細孔径が３ｎｍ〜３０ｎｍである多孔質シリカを１〜３０質量部配合してなることを特徴とするスタッドレスタイヤ用ゴム組成物（但し、前記（Ｄ）多孔質シリカは、前記（Ｃ）シリカに含まれない。）によって上記課題を解決した。【選択図】なし