Invention Application
- Patent Title: RUBBER COMPOSITION AND TIRE
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Application No.: US16739776Application Date: 2020-01-10
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Publication No.: US20200148852A1Publication Date: 2020-05-14
- Inventor: Satoshi HAMATANI , Hidenobu AKAHANE
- Applicant: BRIDGESTONE CORPORATION
- Applicant Address: JP Tokyo
- Assignee: BRIDGESTONE CORPORATION
- Current Assignee: BRIDGESTONE CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3822576a
- Main IPC: C08K3/04
- IPC: C08K3/04 ; C08K3/36 ; B60C1/00

Abstract:
A rubber composition that is capable of providing vulcanized rubber excellent in the abrasion resistance without the deterioration of the crack resistance and the low heat generation property is provided. The rubber composition contains: (A) a rubber component; (B) carbon black having a CTAB specific surface area of 110 to 160 m2/g, a half value width ΔD50 of a peak including a Stokes equivalent diameter Dst obtained by a centrifugal sedimentation method of 60 nm or less, and ΔD50/Dst of 0.95 or less; and (C) silica having a CTAB specific surface area of 200 m2/g or more, has a total amount of a content (b) of the carbon black (B) and a content (c) of the silica (C) of 30 to 80 parts by mass per 100 parts by mass of the rubber component (A), and has (b)/(c) of (60 to 85)/(40 to 15).
Public/Granted literature
- US11168197B2 Rubber composition and tire Public/Granted day:2021-11-09
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