The Yokohama Rubber Co., Ltd.

Matsumoto Yushi-seiyaku Co., Ltd.

Makio Mori

Takeshi Hotaka

Kenichi Kitano

Toshiaki Masuda

Naoki Kushida

Takashi Shirokawa

Yoshiaki Shirakabe

Takamasa Kitamura

Masakazu Takeuchi

A rubber composition for a tire containing (i) 100 parts by weight of a diene-based rubber and (ii) 0.5 to 25 parts by weight of a heat-expandable microcapsule including a shell, and a substance capable of vaporizing or expanding under heating to thereby generate a gas and a nonpolar oil, both encapsulated in the shell,

Rubber composition for tire

A rubber composition for a tire comprising 100 parts by weight of diene rubber and 1 to 30 parts by weight of expandable graphite having a particle size of 30 to 600 &#x3bc;m.

Radial tire derived from rubber composition containing expandable graphite

A rubber composition comprising 100 parts by weight of a diene rubber and 0.5 to 20 parts by weight of a foaming agent-containing resin containing 5 to 65% by weight of a chemical foaming agent, wherein the resin is mainly a polyolefin resin which is not co-crosslinkable with the diene rubber and wherein the rubber composition is structured having microcapsule-shaped bubbles coated with a resin layer after vulcanization of the rubber.

Rubber composition for tire and process of production thereof

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Hiratsuka, Japan

Makio Mori