PROBLEM TO BE SOLVED: To provide a tire rubber composition, a tire and a production method that make it possible to improve performance on ice and snow and also to strike a balance between the performance on ice and snow and wear resistance.SOLUTION: The present invention relates to: a tire rubber composition, and a tire, containing a diene rubber, and porous foaming glass particles with a porosity of 80% or less, of 0.5-20 pts.mass relative to the diene rubber 100 pts.mass; and a method for producing a tire rubber composition that includes the step of kneading porous foaming glass particles with a porosity of 80% or less, which are prepared with a foaming agent containing shell powder, into a diene rubber. In the tire rubber composition, preferably, the foaming glass particles have an average particle size of less than 1000 μm, and its main component is SiO, CaO and NaO. The tire rubber composition preferably further contains at least one selected from ground products of porous carbide, porous cellulose particles and vegetable granular bodies.SELECTED DRAWING: None
【課題】氷雪上性能を向上可能なだけでなく、氷雪上性能と耐摩耗性とを両立できるタイヤ用ゴム組成物、タイヤ及び製造方法の提供。【解決手段】ジエン系ゴムと、空隙率80%以下の多孔質の発泡ガラス粒子をジエン系ゴム100質量部に対して0.5〜20質量部とを含む、タイヤ用ゴム組成物、タイヤ。貝殻粉を含む発泡剤で作製された空隙率80%以下の多孔質の発泡ガラス粒子をジエン系ゴムに練り込む工程を含む、タイヤ用ゴム組成物の製造方法。前記発泡ガラス粒子の平均粒径が1000μm未満であることが好ましく、その主成分がSiO2、CaO及びNa2Oであることが好ましい、タイヤ用ゴム組成物。更に、多孔質性炭化物の粉砕物、多孔性セルロース粒子及び植物性粒状体から選ばれる1種以上を含むことが望ましいタイヤ用ゴム組成物。【選択図】なし
TIRE RUBBER COMPOSITION, TIRE AND METHOD FOR PRODUCING THE SAME
タイヤ用ゴム組成物、タイヤおよびそれらの製造方法
2018-06-28
Patent
Electronic Resource
Japanese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP / 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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