To provide a rubber composition for sealant capable of saving weight of a sealant material per unit volume, absorbing cavity resonance tone generated in a tire by a hollow part while alleviating ununiformity of weight, providing a sound absorption effect and excellent in sound attenuation.SOLUTION: There is provided a rubber composition for sealant containing a butyl rubber as a rubber component, and a hollow fiber as an additive. There is provided a rubber composition for sealant, in which hollow rate (A) of the hollow fiber is 10 to 50% and fiber length thereof is 0.1 to 10 mm. There is provided a rubber composition for sealant, in which content of the hollow fiber is preferably 5 to 20 pts.mass based on 100 pts.mass of the rubber component.SELECTED DRAWING: None

    【課題】単位体積当たりのシーラント材の重量を軽量化することができ、重量の不均一性を緩和すると共に、中空部分がタイヤ内部に生じる空洞共鳴音などを吸収し、吸音効果が得られ、消音性にも優れるシーラント用ゴム組成物を提供する。【解決手段】ゴム成分としてブチルゴムを含み、添加剤として中空繊維を含むシーラント用ゴム組成物。中空繊維の中空率(A)が10〜50%であり、その繊維長が0.1〜10mmである、シーラント用ゴム組成物。ゴム成分100質量部に対して、中空繊維の含有量が5〜20質量部であることが好ましい、シーラント用ゴム組成物。【選択図】なし


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    Title :

    RUBBER COMPOSITION FOR SEALANT


    Additional title:

    シーラント用ゴム組成物


    Contributors:

    Publication date :

    2019-01-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C09K Materialien für Anwendungen, soweit nicht anderweitig vorgesehen , MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / 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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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