Invention Grant
- Patent Title: Pneumatic tire
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Application No.: US15469869Application Date: 2017-03-27
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Publication No.: US10967677B2Publication Date: 2021-04-06
- Inventor: Suguru Izumo , Ryoji Kojima
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Kobe
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2016-079008 20160411
- Main IPC: B60C1/00
- IPC: B60C1/00 ; C08K3/36 ; C08L9/00 ; C08K5/548 ; C08K3/06 ; C08L57/02 ; C08K5/47 ; C08L91/00 ; C08K5/18 ; C08L45/00 ; C08K5/09 ; C08K3/22 ; C08L47/00 ; C08K3/04 ; C08C19/25 ; C08L9/06 ; C08L15/00 ; C08L21/00 ; C08K3/02

Abstract:
There is provided a pneumatic tire having improved wet grip performance and fuel efficiency in a good balance. The pneumatic tire is provided with a tread composed of a rubber composition comprising not less than 0.5 part by mass of silica and not less than 5 parts by mass of a resin based on 100 parts by mass of a rubber component comprising 40 to 100% by mass of a styrene-butadiene rubber and 0 to 60% by mass of a butadiene rubber, wherein an adhesive force of the rubber composition measured by the specified adhesion test method is not less than 300 when an adhesive force of a reference rubber composition wherein the whole amount of resin has been replaced by oil is assumed to be 100, and a ratio of a loss tangent tan δ0° C. at 0° C. of the rubber composition to a loss tangent tan δ70° C. at 70° C. of the rubber composition (tan δ0° C./tan δ70° C. is from 3.0 to 10.
Public/Granted literature
- US20170291450A1 PNEUMATIC TIRE Public/Granted day:2017-10-12
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