Rubber composition for tires

JP7789580B2Active Publication Date: 2025-12-22THE YOKOHAMA RUBBER CO LTD
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Patent Information

Application Number
JP2022021255
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-15
Publication Date
2025-12-22
Estimated Expiration
2042-02-15
Patent Text Reader

Abstract

To provide a rubber composition for tires that has excellent breaking strength, rolling resistance, and wear resistance.SOLUTION: The present invention provides a rubber composition for tires that contains a diene rubber and a plasticizer X. The 1H-NMR spectrum of the plasticizer X satisfies indices I and II. Index I: 0≤{c÷(a+b+c)}×100≤0.1. Index II: 0<log{(a+b)÷b}≤1.0. (In the indices I and II, a represents the integration ratio a of a signal at the area A of the 1H-NMR spectrum: 0.2-2.2 ppm, b represents the integration ratio b of a signal at the area B of the 1H-NMR spectrum: more than 2.2 ppm and 4.0 ppm or less, and c represents the integration ratio c of a signal at the area C of the 1H-NMR: 6.0-10 ppm).SELECTED DRAWING: None
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