RUBBER COMPOSITION FOR TIRE, AND TIRE

Title:

RUBBER COMPOSITION FOR TIRE, AND TIRE

Document Type and Number:

WIPO Patent Application WO/2018/211932

Kind Code:

A1

Abstract:

Provided is a rubber composition for tires which is excellent in terms of low-heat-buildup property and wear resistance. The rubber composition for tires of the present invention comprises a rubber component comprising a diene-based rubber, carbon black, and silica, and is characterized by further containing both a carbon black dispersant comprising a compound of, for example, formula (I) and a compound having a Hansen solubility parameter (HSP) of 27 or greater. (In formula (I), A is an aryl group having at least two polar groups, which may be the same or different; and R1 and R2 are each independently at least one substituent which is selected from the group consisting of a hydrogen atom, acyl groups, an amide group, alkyl groups, cycloalkyl groups, and aryl groups and which may further contain one or more atoms selected from among oxygen, sulfur, and nitrogen atoms.)

Inventors:

SAIKI AYA (JP)
HAMATANI SATOSHI (JP)

Application Number:

PCT/JP2018/016850

Publication Date:

November 22, 2018

Filing Date:

April 25, 2018

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)

International Classes:

B60C1/00; C08L9/00; C08K3/04; C08K3/36; C08L7/00

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