To stabilize the quality of a prepolymer and improve the quality of a molding.SOLUTION: A filler for tires 10 is accommodated in a circular space constituted by a tire sheath 20 and a rim 25. The filler for tires 10 is formed by a prepolymer method using a urethane prepolymer prepared from a composition that comprises polyisocyanate comprising MDI isocyanate and polyol comprising polytetramethylene glycol.SELECTED DRAWING: Figure 1

    【課題】プレポリマーの品質を安定化し、成形品の品質を向上する。【解決手段】タイヤ用充填材10は、タイヤ外皮20とリム25とで構成される環状の空間に収容される。タイヤ用充填材10は、MDI系イソシアネートを含むポリイソシアネートと、ポリテトラメチレングリコールを含むポリオールと、を含む組成物から作製されたウレタンプレポリマーを用いるプレポリマー法で形成されている。【選択図】図1


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    Title :

    FILLER FOR TIRES AND METHOD FOR PRODUCING FILLER FOR TIRES


    Additional title:

    タイヤ用充填材及びタイヤ用充填材の製造方法


    Contributors:

    Publication date :

    2023-08-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind



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