发明申请
- 专利标题: MOTORCYCLE TYRE
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申请号: US17755334申请日: 2020-11-03
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公开(公告)号: US20220410627A1公开(公告)日: 2022-12-29
- 发明人: Luca BRUSCHELLI , Nicola FORCONI , Mario MARIANI , Matteo TORCHIANA
- 申请人: Pirelli Tyre S.p.A.
- 申请人地址: IT Milano
- 专利权人: Pirelli Tyre S.p.A.
- 当前专利权人: Pirelli Tyre S.p.A.
- 当前专利权人地址: IT Milano
- 优先权: IT102019000020310 20191104
- 国际申请: PCT/IB2020/060287 WO 20201103
- 主分类号: B60C11/00
- IPC分类号: B60C11/00 ; B60C1/00 ; C08K3/36 ; C08L9/00 ; C08K3/34 ; C08K3/26 ; C08K3/22
摘要:
A motorcycle tyre (1) is described comprising an equatorial plane (X-X) and a tread band (8) comprising a radially inner portion (13) and a radially outer portion (11) respectively comprising a first and a second vulcanized elastomeric material obtained by vulcanizing respective elastomeric materials comprising 100 phr of at least one elastomeric diene polymer, from 30 to 130 phr of at least one reinforcing filler comprising an amount greater than 75% or, respectively, equal to or greater than 80% of a white filler. In the tyre (1) the ratio R1 between the dynamic elastic modulus (E′) and the tandelta measured at a frequency of 10 Hz and at 70° C. of the first vulcanized elastomeric material is comprised between 27 and 35, whereas the ratio R2 between the dynamic elastic modulus (E′) and the tandelta measured at a frequency of 10 Hz and at 70° C. of the second vulcanized elastomeric material is comprised between 15 and 30, the ratio R1/R2 being greater than or equal to 1.1.