公开(公告)号：EP4161786A1

公开(公告)日：2023-04-12

申请号：EP21735758.1

申请日：2021-06-08

申请人： Pirelli Tyre S.P.A.

发明人： GIANNINI, Luca ,  ZINNA, Marianna ,  PROTO, Antonio ,  CAPACCHIONE, Carmine ,  PARADISO, Veronica

IPC分类号： B60C1/00 ,  C08F4/64 ,  C08F236/06 ,  C08F236/10

公开(公告)号：EP3463929B1

公开(公告)日：2020-05-13

申请号：EP17727256.4

申请日：2017-06-06

申请人： Pirelli Tyre S.p.A.

发明人： DE CANCELLIS, Pierluigi ,  HANEL, Thomas ,  PARAZZOLI, Francesco ,  RATTI, Giuseppina ,  WAGEMANN, Juergen ,  ZINNA, Marianna

IPC分类号： B60C1/00 ,  C08L9/00 ,  C08L9/06

公开(公告)号：EP3463929A1

公开(公告)日：2019-04-10

申请号：EP17727256.4

申请日：2017-06-06

申请人： Pirelli Tyre S.p.A.

发明人： DE CANCELLIS, Pierluigi ,  HANEL, Thomas ,  PARAZZOLI, Francesco ,  RATTI, Giuseppina ,  WAGEMANN, Juergen ,  ZINNA, Marianna

IPC分类号： B60C1/00 ,  C08L9/00 ,  C08L9/06

摘要： 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.