RUBBER COMPOSITION FOR TREAD AND PNEUMATIC TIRE USING THE SAME

Title:

RUBBER COMPOSITION FOR TREAD AND PNEUMATIC TIRE USING THE SAME

Document Type and Number:

Japanese Patent JP2006249230

Kind Code:

A

Abstract:

To obtain a rubber composition for tread, which exhibits excellent grip performance in a wide temperature range when used in a tire tread.

The rubber composition for tread is obtained by mixing 100 parts by mass of a rubber component (A) with 5-50 parts by mass of a softener (B) having -50°C to 50°C softening point, 5-50 parts by mass of a resin (C) having ≥70°C softening point and/or 5-50 parts by mass of a plasticizer (D) having ≤-50°C freezing point. The softener (B) is a high-vinyl polybutadiene having ≥50% vinyl bond content.

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Inventors:

SAKURAI HIDEYUKI

Application Number:

JP2005067219A

Publication Date:

September 21, 2006

Filing Date:

March 10, 2005

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