The present invention relates to a copolymer of a conjugated diene and ethylene, the copolymer comprising ethylene units and 1, 3-diene units, the proportion of ethylene units in the ethylene units and 1, 3-diene units being between 50 mol% and 95 mol%, the 1, 4-configuration 1, 3-diene units accounting for 50 mol% or more of the 1, 3-diene units of formula CH2 = CR-CH = CH2, the 1, 4-configuration 1, 3-diene units accounting for 50 mol% or more of the 1, 3-diene units of formula CH2 = CR-CH = CH2, and the 1, 4-configuration 1, 3-diene units accounting for 0.5 mol% or more of the 1, 3-diene units of formula CH2 = CR-CH = CH2. The symbol R represents a hydrocarbon chain containing 3 to 20 carbon atoms. This copolymer has an improved compromise between ethylene content, stiffness and crystallinity for tires.

    本发明涉及共轭二烯与乙烯的共聚物,所述共聚物包含乙烯单元和1,3‑二烯单元,乙烯单元在乙烯单元和1,3‑二烯单元中的占比在50摩尔%和95摩尔%之间,1,4构型的1,3‑二烯单元占式CH2=CR‑CH=CH2的1,3‑二烯单元的50摩尔%以上,符号R表示含有3至20个碳原子的烃链。这种共聚物在用于轮胎的乙烯含量、刚度和结晶度之间具有改进的折衷。


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    Title :

    Copolymer of conjugated diene and ethylene


    Additional title:

    共轭二烯与乙烯的共聚物


    Contributors:

    Publication date :

    2023-12-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



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