PROBLEM TO BE SOLVED: To provide a vulcanizable composition exhibiting enhanced tear strength and useful for being used for manufacturing a tire.SOLUTION: There are provided a vulcanizable composition containing a vulcanized rubber and a polypropylene homopolymer of 35 pts.wt. or less based on 100 pts.wt. of the rubber, where the polypropylene homopolymer has an isotactic fine structure and purity thereof relates to a catalyst used in a polymer synthesis, having weight average molecular weight (Mw) of 80,000 to 500,000 and molecular distribution (Mw/Mn) of less than 4.5 and a tire obtained by using the composition.SELECTED DRAWING: None
【課題】向上した引裂き強さを示す、タイヤの製造で用いるに有用な加硫性組成物の提供。【解決手段】加硫性組成物でであって、加硫ゴムとゴム100重量部当たり35重量部以下の量のポリプロピレンホモポリマーを含み、ここで、ポリプロピレンホモポリマーはイソタクティック微細構造を有し、その純度はポリマー合成で用いられた触媒に関係し、重量平均分子量(Mw)が80,000〜500,000であり、分子量分布(Mw/Mn)が4.5未満である、組成物及び、前記組成物を用いて得られるタイヤ。【選択図】なし
TIRE CONSTITUENT HAVING ENHANCED TEAR STRENGTH
向上した引裂き強さを有するタイヤ構成要素
2016-06-09
Patent
Elektronische Ressource
Japanisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / 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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