A multiblock copolymer, obtainable by copolymerization of a conjugated diene compound and a non-conjugated olefin, is characterized in that: a structure of the multiblock copolymer includes A-(B-A) x and/or B-(A-B) x , wherein "A" represents a block portion constituted of monomer units of a non-conjugated olefin, "B" represents a block portion constituted of monomer units of a conjugated diene compound, and "x" represents an integer ¥ 1; content of the non-conjugated olefin portion is ¤ 50 mol %; 0 mol % < crystal content of the non-conjugated olefin portion ¤ 20 mol %; and 0 % < degree of crystallinity of the non-conjugated olefin portion ¤ 40 %. Vulcanized rubber having high fracture resistance and high crack resistance (thus a rubber composition and a tire each using the vulcanized rubber and having such excellent physical properties) can be manufactured from the multiblock polymer.


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    Title :

    MULTIBLOCK COPOLYMER, RUBBER COMPOSITION, AND TIRE


    Additional title:

    MULTIBLOCKCOPOLYMER, KAUTSCHUKZUSAMMENSETZUNG UND REIFEN
    COPOLYMERE SEQUENCE, COMPOSITION DE CAOUTCHOUC, ET PNEUMATIQUE


    Contributors:

    Publication date :

    2019-01-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / 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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