Invention Application
- Patent Title: RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE
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Application No.: US16202933Application Date: 2018-11-28
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Publication No.: US20190184745A1Publication Date: 2019-06-20
- Inventor: Masaki OSHIMO , Daisuke SATO , Takahiro MABUCHI
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Hyogo
- Priority: JP2017-241694 20171218
- Main IPC: B60C1/00
- IPC: B60C1/00 ; C08L9/06 ; C08L19/00 ; C08K3/04 ; C08K3/36 ; C08K3/22 ; C08K3/26 ; C08K9/02 ; C08K5/548 ; C08L47/00

Abstract:
Provided is a pneumatic tire that provides a balanced improvement of tensile strength and fuel economy. Included is a rubber composition for tires containing: a rubber component including an aromatic vinyl-conjugated diene copolymer that contains aromatic vinyl units derived from an aromatic vinyl compound and conjugated diene units derived from a conjugated diene compound; carbon black; and silica, the copolymer containing at least 80% of isolated aromatic vinyl units based on the total aromatic vinyl units, the copolymer having a ΔTg of more than 10° C. but less than 20° C. as determined by DSC, the rubber component including, based on 100% by mass thereof, 10% by mass or more of the copolymer, the rubber composition containing 10 parts by mass or more of the silica per 100 parts by mass of the rubber component.
Information query