To provide a method for producing a sealant material for a tire capable of securing good sealability even when a general-purpose rubber is used.SOLUTION: There is provided a method for producing a sealant material for a tire by vulcanizing a sealant material composition comprising a diene-based rubber as a main component of a rubber component, which comprises a vulcanization step of vulcanizing an unvulcanized sealant material composition; and a cutting step of cutting rubber molecules in the rubber component by kneading at least a rubber component of the constituting components of the unvulcanized sealant material composition under the temperature condition of 120°C or more and the cutting step is performed before the vulcanization step and/or simultaneously with the vulcanization step.SELECTED DRAWING: Figure 1
【課題】汎用ゴムを用いた場合であっても良好なシール性を確保することを可能にしたタイヤ用シーラント材の製造方法を提供する。【解決手段】ジエン系ゴムをゴム成分の主成分として含有するシーラント材組成物を加硫してなるタイヤ用シーラント材を製造するにあたって、未加硫のシーラント材組成物を加硫する加硫工程と、未加硫のシーラント材組成物の構成成分のうちの少なくともゴム成分を120℃以上の温度条件で混練してゴム成分中のゴム分子を切断する切断工程とを行い、切断工程を加硫工程の前および/または加硫工程と同時に行う。【選択図】図1
METHOD FOR PRODUCING SEALANT MATERIAL FOR TIRE
タイヤ用シーラント材の製造方法
04.11.2022
Patent
Elektronische Ressource
Japanisch
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 / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand |
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