发明申请
- 专利标题: Pneumatic tire and process for its manufacture
- 专利标题(中): 气动轮胎及其制造工艺
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申请号: US10584798申请日: 2003-12-30
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公开(公告)号: US20070187013A1公开(公告)日: 2007-08-16
- 发明人: Piero Losi , Pierluigi De Cancellis , Gaetano Lo Presti , Rodolfo Noto , Claudio Lacagnina
- 申请人: Piero Losi , Pierluigi De Cancellis , Gaetano Lo Presti , Rodolfo Noto , Claudio Lacagnina
- 申请人地址: IT Milan I-20126
- 专利权人: PIRELLI PNEUMATICI S.P.A.
- 当前专利权人: PIRELLI PNEUMATICI S.P.A.
- 当前专利权人地址: IT Milan I-20126
- 国际申请: PCT/IT03/00867 WO 20031230
- 主分类号: B29D30/08
- IPC分类号: B29D30/08 ; B60C11/00
摘要:
A pneumatic tire has a carcass structure having at least one carcass ply and at least one annual reinforcing structure associated with the carcass ply, a tread band made of an elastomeric material at a radially outer position with respect to the carcass structure, a belt structure interposed between the carcass structure and the tread band and a pair of axially opposite side walls on the carcass structure, wherein the tread band has i) at least one first sector, radially extending, substantially of a first elastomeric material; ii) a plurality of second sectors radially extending, positioned at axially opposite sides of the at least one first sector and substantially of a second elastomeric material; iii) at least one longitudinal groove formed in the at least one first sector and extending substantially for the entire circumferential development of the tread band, wherein the first elastomeric material has a modulus of elasticity under compression at 23° C. greater than the modulus of elasticity under compression at 23° C. of the second elastomeric material, and wherein the modulus of elasticity under compression at 23° C. of the first elastomeric material is about 20 to about 80 MPa.
公开/授权文献
- US08104523B2 Pneumatic tire and process for its manufacture 公开/授权日:2012-01-31
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