A method of producing a rubber compound for a tread portion designed to assume, with use, a porous surface with a 75 to 800 μm pore area. The method includes a first mixing step, in which a polymer base, recycled rubber, and silica are mixed together; and a second mixing step, in which a curing system is added and mixed to the compound from the first mixing step. 5 to 20 phr of recycled rubber is added at the first mixing step. The recycled rubber is 75 to 800 um in size, and is treated beforehand cryogenically. And the polymer base is selected from SBR, BR, NR and mixtures thereof. The invention also relates to a rubber compound for producing a tread portion, a tread portion and a winter tire comprising said tread portion.


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    Title :

    METHOD TO PREPARE TREADS FOR TYRES


    Additional title:

    VERFAHREN ZUR HERSTELLUNG VON LAUFFLÄCHEN FÜR REIFEN
    PROCÉDÉ DE PRÉPARATION DE BANDES DE ROULEMENT POUR PNEUS


    Contributors:

    Publication date :

    2018-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / 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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