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    • 1. 发明申请
    • TIRE FOR VEHICLE WHEELS
    • 车轮用轮胎
    • WO2017211823A1
    • 2017-12-14
    • PCT/EP2017/063706
    • 2017-06-06
    • PIRELLI TYRE S.P.A.
    • DE CANCELLIS, PierluigiHANEL, ThomasPARAZZOLI, FrancescoRATTI, GiuseppinaWAGEMANN, JuergenZINNA, Marianna
    • B60C1/00C08L9/00C08L9/06
    • The present invention relates to a tire (100) for vehicle wheels comprising a tire component comprising a crossiinked eiastomeric material obtained by crosslinking a crosslinkable eiastomeric composition, wherein said eiastomeric composition comprises a polymer blend comprising (a) 50 to 95 percent by weight of a first eiastomeric polymer and (b) 5 to 50 percent by weight of a second eiastomeric polymer based on the total weight of the polymer blend. The second eiastomeric polymer (b) is obtainable by (i) anionic polymerization of at least one conjugated diene monomer and one or more a-olefin monomer(s) in the presence of a polymerization initiator in an organic solvent, and (ii) coupling the polymer chains obtained in (i) by a coupling agent. The second eiastomeric polymer (b) has a weight-average molecular weight (Mw) in the range of 5,000-40,000 g/mol and a coupling rate of at least 50 percent by weight.
    • 本发明涉及用于车轮的轮胎(100),其包含轮胎组分,所述轮胎组分包含通过交联可交联弹性体组合物获得的交联的弹性体材料,其中所述弹性体组合物包含聚合物共混物,所述聚合物共混物包含(a) 基于聚合物共混物的总重量,50-95重量%的第一弹性体聚合物和(b)5-50重量%的第二弹性体聚合物。 第二弹性体聚合物(b)可通过以下方法获得:(i)在聚合引发剂存在下,在有机溶剂中,将至少一种共轭二烯单体和一种或多种α-烯烃单体进行阴离子聚合,和(ii) (i)中通过偶联剂获得的聚合物链。 第二弹性体聚合物(b)的重均分子量(Mw)为5,000-40,000g / mol,偶联率为至少50重量%。