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1.
公开(公告)号:US12122861B2
公开(公告)日:2024-10-22
申请号:US17607147
申请日:2020-04-21
发明人: Yasuhiro Shoda , Shun Tanemura
IPC分类号: C08F210/02 , B60C1/00
CPC分类号: C08F210/02 , B60C1/00
摘要: An object of the present disclosure is to provide a polymer exhibiting reduced heat generation in a low strain region. To achieve the object, the present disclosure provides a multi-component copolymer, comprising a non-conjugated olefin unit, a conjugated diene unit, and an aromatic vinyl unit, characterized in that: a ratio [(C100-120/C0-1000)×100] of crystallinity (C100-120) derived from the non-conjugated olefin unit at 100-120° C. with respect to crystallinity (C0-100) derived from the non-conjugated olefin unit at 0-100° C., as measured by a differential scanning calorimeter (DSC), is 23% or less.
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公开(公告)号:US11655356B2
公开(公告)日:2023-05-23
申请号:US17271933
申请日:2019-07-31
发明人: Yasuhiro Shoda
CPC分类号: C08L9/06 , B60C1/0016 , C08L23/0815 , C08L23/0838
摘要: Provided is a rubber composition that can achieve excellent breaking resistance while having high operability. A rubber composition comprises: a rubber component containing a multicomponent copolymer that contains a conjugated diene unit, a non-conjugated olefin unit, and an aromatic vinyl unit; and an α-olefin having a number-average molecular weight (Mn) of 50 to 1,000.
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公开(公告)号:US11920022B2
公开(公告)日:2024-03-05
申请号:US17274328
申请日:2019-07-31
发明人: Yasuhiro Shoda , Olivier Tardif
IPC分类号: C08L23/08 , B60C1/00 , C08F210/02 , C08F210/16 , C08F236/06 , C08F236/08
CPC分类号: C08L23/0815 , B60C1/00 , B60C1/0016 , C08F210/02 , C08F210/16 , C08F236/06 , C08F236/08 , C08L23/083 , C08L23/0838 , C08L2205/02 , C08L2205/025 , C08F210/02 , C08F236/06 , C08F212/08 , C08F2500/27 , C08F2500/32 , C08F2500/34 , C08F2500/35 , C08F2500/03 , C08F210/16 , C08F210/14 , C08F2500/02 , C08F2500/27 , C08F210/02 , C08F212/08 , C08F2500/02 , C08F2500/03 , C08F2500/27 , C08F210/16 , C08F210/14 , C08F2500/02 , C08F2500/27 , C08F2500/03 , C08L7/00 , C08L23/0815 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/06 , C08K5/47 , C08K5/47 , C08L7/00 , C08L23/0838 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/06 , C08K5/47 , C08K5/47 , C08F210/02 , C08F4/52 , C08F210/16 , C08F4/52 , C08L23/0838 , C08L23/0838 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/06 , C08K5/47 , C08K5/47 , C08L23/0838 , C08L23/0815 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/06 , C08K5/47 , C08K5/47 , C08L23/083 , C08L23/0815 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/06 , C08K5/47 , C08K5/47 , C08L23/083 , C08L23/0838 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/06 , C08K5/47 , C08K5/47
摘要: Provided is a rubber composition that can achieve excellent breaking resistance while having high operability. A rubber composition comprises: a rubber component containing a multicomponent copolymer that contains a conjugated diene unit, a non-conjugated olefin unit, and an aromatic vinyl unit; and at least one selected from an ethylene-α olefin copolymer and an ethylene-aromatic vinyl copolymer each having a number-average molecular weight of 500 to 30,000.
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