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公开(公告)号：US20230084060A1
公开(公告)日：2023-03-16
申请号：US17759717
申请日：2021-02-02
发明人： Daichi AOKI , Hiroki NAKAJIMA
摘要： Provided is a run flat tire comprising a side reinforcing layer on a sidewall part, wherein a rubber composition of the side reinforcing layer has a complex elastic modulus at 100° C. (E*100) of 5.0 to 17 MPa and a loss tangent at 60° C. (60° C. tan δ) of 0.020 to 0.100 MPa, and wherein, where a tire cross-sectional width is defined as Wt (mm) and a tire outer diameter is defined as Dt (mm), Wt and Dt satisfy any of the following inequality (1), (2), and (3): Wt
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公开(公告)号：US20240317000A1
公开(公告)日：2024-09-26
申请号：US18276806
申请日：2022-02-02
发明人： Daichi AOKI
CPC分类号： B60C23/0493 , B60C9/02 , B60C2009/0276 , B60C2009/0284 , B60C2200/04
摘要： Provided is a tire having high peeling resistance such that an electronic component mounting member unlikely peels off from the surface of the tire even when a large impact is applied on the tire during a high-speed running in a low-temperature environment. In the tire, the electronic component mounting member for incorporating an electronic component is mounted on the surface of a tire inner member, the electronic component mounting member comprises an electronic component storage portion for storing the electronic component and a joint portion having a joint surface for mounting the electronic component mounting member on the surface of the tire inner member, and the complex elastic modulus E*r (MPa) of the joint portion at 0° C. and the complex elastic modulus E*i (MPa) of the tire inner member at 0° C. satisfy the following (formula 1).
E
*
r
/
E
*
i-
公开(公告)号：US20240123771A1
公开(公告)日：2024-04-18
申请号：US18277707
申请日：2022-02-17
发明人： Daichi AOKI
CPC分类号： B60C19/00 , B60C5/14 , B60C23/0493 , B60C2019/004
摘要： A pneumatic tire (1) includes: a tread portion (2) including a land portion (24) divided by a plurality of main grooves (22) formed on a tread surface (21); an inner liner (7) constituting a tire inner surface (7A) on an inner side of the tread portion (2); and a mount member (10) which is provided on the tire inner surface (7A), and to which electric equipment can be attached. In the pneumatic tire (1), Complex elastic modulus E*1 of a rubber composition constituting the mount member (10) is larger than complex elastic modulus E*2 of a rubber composition constituting the inner liner (7).
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公开(公告)号：US20240123765A1
公开(公告)日：2024-04-18
申请号：US18276821
申请日：2022-02-02
发明人： Takuma YOSHIZUMI , Naoya SOFUE , Daichi AOKI
CPC分类号： B60C5/14 , B60C1/0008 , B60C19/00 , B60C23/0493 , B60C2019/004
摘要： Provided is a tire in which cracks do not occur in the tire inner member during high-speed running and the occurrence of tire air leakage and detachment of electronic component mounting members is suppressed. A tire in which an electronic component mounting member for a built-in electronic component is mounted on the surface of a tire inner member, wherein the electronic component mounting member has an electronic component storage portion for storing an electronic component and a joint portion equipped with a joint surface for mounting the electronic component mounting member on the surface of the tire inner member, and the acetone extraction weight AEr (mass %) of the electronic component mounting member and the acetone extraction weight AEi (mass %) of the tire inner member satisfy (formula 1).
AEr/AEi>1 (formula 1)-
公开(公告)号：US20220063351A1
公开(公告)日：2022-03-03
申请号：US17422436
申请日：2020-01-21
发明人： Daichi AOKI , Mutsuki SUGIMOTO , Takanobu KAWAMURA
IPC分类号： B60C17/00
摘要： Provided is a run-flat tire having improved durability performance during travel while the tire is running flat. A surface section of a sidewall of the run-flat tire is provided with an uneven section. A sidewall reinforcement layer is configured such that a breaking strength TB (MPa) at 100° C.×an elongation at break EB (%) is 320 or more and a loss tangent 100° C. tan δ at 100° C. is 0.06 or less, and the sidewall is configured such that a loss tangent 60° C. tan δ at 60° C. is 0.17 or less and |60° C. tan δ−75° C. tan δ| is less than 0.05.
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公开(公告)号：US20240227447A9
公开(公告)日：2024-07-11
申请号：US18277720
申请日：2022-02-17
发明人： Takuma YOSHIZUMI , Naoya SOFUE , Daichi AOKI
CPC分类号： B60C5/14 , B60C1/0008 , B60C19/00 , B60C2200/04
摘要： A pneumatic tire (1) includes: a tread portion (2) including a land portion (24) divided by a plurality of main grooves (22) formed on a tread surface (21); an inner liner (7) constituting a tire inner surface (7A) on an inner side of the tread portion (2); and a mount member (10) which is provided on the tire inner surface (7A), and to which electric equipment can be attached. In the pneumatic tire (1), acetone extraction amount (AE2) of a rubber composition constituting the inner liner (7) is larger than acetone extraction amount AE1 of a rubber composition constituting the mount member (10).
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公开(公告)号：US20240131867A1
公开(公告)日：2024-04-25
申请号：US18277720
申请日：2022-02-17
发明人： Takuma YOSHIZUMI , Naoya SOFUE , Daichi AOKI
CPC分类号： B60C5/14 , B60C1/0008 , B60C19/00 , B60C2200/04
摘要： A pneumatic tire (1) includes: a tread portion (2) including a land portion (24) divided by a plurality of main grooves (22) formed on a tread surface (21); an inner liner (7) constituting a tire inner surface (7A) on an inner side of the tread portion (2); and a mount member (10) which is provided on the tire inner surface (7A), and to which electric equipment can be attached. In the pneumatic tire (1), acetone extraction amount (AE2) of a rubber composition constituting the inner liner (7) is larger than acetone extraction amount AE1 of a rubber composition constituting the mount member (10).
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