PNEUMATIC TIRE - SUMITOMO RUBBER IND

Title:

PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2022/050153

Kind Code:

A1

Abstract:

Provided is a pneumatic tire that ensures sufficient steering stability even when a vehicle travels on a wet road surface at a high speed. The pneumatic tire includes a tread part formed of a rubber composition containing: a rubber component of styrene-butadiene rubber and isoprene-based rubber; and a resin component, wherein when Q (parts by mass) is the content of the resin component with respect to 100 parts by mass of the rubber component, the tire is incorporated into a normal rim, the internal pressure is 250 kPa, Wt (mm) is the cross-sectional width of the tire, and Dt (mm) is the outer diameter, the content Q (parts by mass) of the resin component with respect to 100 parts by mass of the rubber component exceeds 25 parts by mass, and expression (1) and expression (2) are satisfied. 1600≦(Dt2×π/4)/Wt≦2827.4……(1) Q/Wt>0.1……(2)

Inventors:

YOSHIYASU HAYATO (JP)

Application Number:

PCT/JP2021/031235

Publication Date:

March 10, 2022

Filing Date:

August 25, 2021

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)

International Classes:

B60C3/04; B60C1/00; C08K3/36; C08L9/00; C08L9/06; C08L57/00

Domestic Patent References:

WO2020022326A1

2020-01-30

Foreign References:

JP2017206194A	2017-11-24
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Other References: