公开(公告)号：US20240416681A1

公开(公告)日：2024-12-19

申请号：US18708312

申请日：2022-11-14

Applicant: Pirelli Tyre S.p.A.

Inventor： Francesco ROMANI

IPC: B60C1/00 ,  C08K3/04 ,  C08K3/06 ,  C08K5/098 ,  C08K5/1535 ,  C08K5/3492 ,  C08K5/548 ,  C08L1/08 ,  C08L7/00 ,  C08L67/00 ,  C08L77/00

Abstract: The present invention relates to compositions for elastomeric compounds of tires, comprising a new secondary cross-linking system comprising at least one methylenes donor agent and at least one methylenes acceptor agent selected from furoic acid, its esters or its salts, tire components and tires for vehicles wheels comprising them.

公开(公告)号：US20240391276A1

公开(公告)日：2024-11-28

申请号：US18688667

申请日：2022-09-06

Applicant: Pirelli Tyre S.p.A.

Inventor： Francesco ROMANI ,  Juergen WAGEMANN ,  Angela LOSTRITTO

IPC: B60C1/00 ,  C08K5/098 ,  C08L9/06

Abstract: The present invention relates to a tyre for vehicle wheels comprising a tread made with a vulcanised elastomeric compound obtained by vulcanising a vulcanisable elastomeric compound comprising: (i) 100 phr of an elastomeric polymer composition comprising, preferably consisting of: a. at least one styrene-butadiene polymer (SBR) in an amount of from 70 to 100 phr, and b. optionally, from 0 to 30 phr of at least one elastomeric polymer selected from the group consisting of isoprene polymer (IR) and butadiene polymer (BR), (ii) from 50 to 100 phr of a mixture of resins and/or plasticising oils, (iii) at least one reinforcing filler in an amount of from 50 to 130 phr, (iv) at least one vulcanising agent in an amount of from 0.1 to 12 phr, and (v) from 0.1 to 5 phr of an organic salt of zinc having the following structural formula (I), wherein the groups R1, R2 and R3, equal or different from each other, are a hydrogen atom or a linear or branched alkyl chain comprising from 1 to 10 carbon atoms, preferably from 1 to 8 carbon atoms, and wherein the groups R1, R2 and R3 comprise a total of from 8 to 10 carbon atoms.