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公开(公告)号:EP3702404B8
公开(公告)日:2024-11-13
申请号:EP18870734.3
申请日:2018-10-16
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公开(公告)号:EP4446379A1
公开(公告)日:2024-10-16
申请号:EP22904256.9
申请日:2022-12-07
发明人: SAWA, Hideaki , SUGIMOTO, Hiroki , HIGUCHI, Ryota
IPC分类号: C08L15/00 , B60C1/00 , B60C11/00 , C08C19/25 , C08K3/36 , C08K5/5419 , C08K5/548 , C08L9/06 , C08L57/00 , C08L91/00 , C08L101/00
摘要: Provided is a rubber composition for tires providing wet performance and wear resistance in a compatible manner. A rubber composition for tires is characterized by containing 30 parts by mass or more of silica blended in 100 parts by mass of a diene rubber containing from 30 to 90 mass% of a modified styrene-butadiene rubber having an alkoxysilyl group. When measured by gel permeation chromatography, the modified styrene-butadiene rubber has a molecular weight distribution curve of a unimodal shape and the molecular weight distribution (PDI) of less than 1.7. A glass transition temperature of the rubber composition for tires is higher than -50°C.
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公开(公告)号:EP4130050B1
公开(公告)日:2024-10-09
申请号:EP21779762.0
申请日:2021-04-02
IPC分类号: C08C19/00 , C08C19/22 , C08C19/25 , C08F236/10 , C08F236/14 , C08L15/00 , C08K3/04 , C08K3/013 , C08K3/36 , C08F236/06 , C08C19/44 , C08K5/00
CPC分类号: C08L15/00 , C08C19/22 , Y02T10/86 , C08F236/06 , C08C19/25 , C08C19/44 , C08F236/10 , C08K5/0016 , C08K3/013 , C08K3/36 , C08K3/04
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公开(公告)号:EP4424718A1
公开(公告)日:2024-09-04
申请号:EP22887098.6
申请日:2022-10-27
摘要: A modified conjugated diene-based polymer is produced using production method that includes a step of reacting a conjugated diene-based polymer having an active end with a compound [M]. The conjugated diene-based polymer having an active end is produced by polymerizing a monomer including a conjugated diene compound in the presence of a polymerization initiator including at least one of an alkali metal compound and an alkaline earth metal compound. The compound [M] has a functional group F1, a functional group F2, and a functional group F3 and no active hydrogen. F1 is a functional group such as "*1-C(=E)-O-" (*1 represents a bond to a carbon atom that constitutes a carbon-carbon unsaturated bond in a chain-like structure or ring-like structure, or a bond to a tertiary carbon atom), F2 is a functional group such as "-C(R7)=N-", and F3 is a functional group such as "-Si(R8)2(OR9)".
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公开(公告)号:EP3702404B1
公开(公告)日:2024-07-17
申请号:EP18870734.3
申请日:2018-10-16
IPC分类号: C08L9/00 , B60C1/00 , B60C11/00 , C08K3/04 , C08K3/36 , C08L9/06 , C08C19/02 , C08C19/22 , C08C19/25 , C08C19/44 , C08F236/10 , C08L15/00
CPC分类号: B60C1/00 , C08K3/04 , C08K3/36 , C08F236/10 , C08C19/02 , C08C19/22 , C08C19/25 , C08C19/44 , C08L15/00 , B60C1/0016 , B60C1/0025 , B60C2001/005820130101
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公开(公告)号:EP4397506A1
公开(公告)日:2024-07-10
申请号:EP23219618.8
申请日:2023-12-22
发明人: KUBO, Haruka
CPC分类号: B60C1/0016 , C08L9/06 , C08L15/00
摘要: In order to improve steering stability at the time of turning while ensuring good fuel efficiency, there is provided a tire tread rubber composition including a rubber component containing styrene-butadiene-based rubber and isoprene-based rubber, wherein the hardness Hs at 23 °C is 55 or greater and 62 or less, and the hardness Hs at 23 °C and the loss tangent tan δ at 35 °C satisfy the following formula: 0.240 ≤ tan δ/Hs × 100 ≤ 0.320. There is also provided a tire having a tread composed of this tire tread rubber composition.
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公开(公告)号:EP4067397B1
公开(公告)日:2024-05-22
申请号:EP21854319.7
申请日:2021-08-04
IPC分类号: C08F236/10 , C08F8/40 , C08F8/32 , C08L9/06 , B60C1/00 , C08C19/22 , C08C19/25 , C08C19/44 , C08L15/00 , C08F236/06
CPC分类号: Y02T10/86 , B60C1/00 , B60C1/0016 , C08L15/00 , C08C19/22 , C08C19/25 , C08C19/44 , C08F236/06 , C08F236/10
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公开(公告)号:EP4031593B1
公开(公告)日:2024-05-01
申请号:EP20790393.1
申请日:2020-09-18
IPC分类号: C08F236/06 , A41D19/00 , C08F236/08 , C08F236/10 , C08F236/12 , C08L9/04 , C08L9/08 , C08L15/00
CPC分类号: C08L9/04 , C08L9/08 , C08L15/00 , C08F236/06 , C08F236/08 , C08F236/10 , C08F236/12 , A41D19/0058
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