RUBBER COMPOSITION FOR SIDEWALL, AND PNEUMATIC TIRE

Title:

RUBBER COMPOSITION FOR SIDEWALL, AND PNEUMATIC TIRE

Document Type and Number:

Japanese Patent JP2015007154

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a rubber composition for a sidewall, which can improve high mileage property, flex-crack resistance and steering stability in a good balance, and to provide a pneumatic tire having a sidewall manufactured by using the composition.SOLUTION: The rubber composition for a sidewall comprises a rubber component and silica, in which a modified diene polymer rubber described below is included by 5 mass% or more in 100 mass% of the rubber component, and the silica is included by 5 to 150 pts.mass with respect to 100 pts.mass of the rubber component. The modified diene polymer rubber is produced by allowing triglycidyl isocyanurate to react with an active conjugate diene polymer having an alkali metal terminal obtained by polymerizing a conjugate diene monomer or polymerizing a conjugate diene monomer and an aromatic vinyl monomer in the presence of a Lewis basic compound in a hydrocarbon solvent using an alkali metal catalyst.

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JPS61236843	COMPOSITION OF BUTYL RUBBER AND HALOGENATED RUBBER
WO/2000/064985	PREPARATION OF A THERMOPLASTIC ELASTOMER HAVING A LOW HARDNESS

Inventors:

NISHIOKA KAZUYUKI
KAMISAKA KENICHI

Application Number:

JP2013131902A

Publication Date:

January 15, 2015

Filing Date:

June 24, 2013

Export Citation:

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Assignee:

SUMITOMO RUBBER IND

International Classes:

C08L21/00; B60C1/00; C08F8/30; C08K3/36; C08L15/00

Attorney, Agent or Firm:

Patent business corporation Yasutomi international patent firm

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