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Toyota Jidosha Kabushiki Kaisha

Toyoda Gosei Co., Ltd.

Kabushiki Kaisha Toyota Chuo Kenkyusho

Masao Owaki

Norio Sato

Makoto Mouri

Katsumi Nakashima

Hidenobu Honda

Hirotaka Okamoto

Mitsumasa Matsushita

Yasuyuki Suzuki

Katsumasa Takeuchi

Toru Yoshida

Kenzo Fukumori

Tamotsu Watanabe

Noriyuki Suzuki

Masahito Fukuta

Kazuya Watanabe

Arimitsu Usuki

Masayoshi Ichikawa

Shigeki Otsuka

Atsushi Murase

Method of reclaiming crosslinked rubber, and molded article of reclaimed rubber

Method of reclaiming crosslinked rubber

Rubber composition and method for producing the same

Devulcanized rubber in which sulfuric crosslinking bonds are cut and which contains carbon black particles having very small diameters. Vulcanized rubber of discarded products is devulcanized by heating it at a temperature of 180.degree. C. --350.degree. C. and applying a shearing pressure of 10-150 kg/cm.sup.2 thereto. Reclaimed rubber products are manufactured by vulcanizing and molding, into desired shapes, a material made of only devulcanized rubber in which sulfuric crosslinking bonds are cut and which contains carbon black particles having very small diameters or a material made of the devulcanized rubber mixed with virgin unvulcanized rubber.

Method of manufacturing devulcanized rubber using high temperature and

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Toyota, Japan

Masao Owaki