Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1992-11-12
1994-08-30
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152525, 152450, B60C 100
Patent
active
053418620
ABSTRACT:
In a flame-retardant rubber tire comprising an outer rubber body portion consisting essentially of a tread rubber layer, a sidewall rubber layer extending inward from each side edge of the tread rubber layer toward the vicinity of a bead portion in radial direction and a rubber chafer layer arranged in the vicinity of the bead portion, a flame-retardant rubber composition having an oxygen index of not less than 19.8 but not more than 27.5 is disposed so as to amount at least 20% by weight of the tread rubber layer. Such rubber tires are used in electric vehicles, automobiles, airplanes and the like and have excellent self-extinguishing property and flame-delaying property without damaging other rubber properties.
REFERENCES:
patent: 4373046 (1983-02-01), Hagiwara et al.
patent: 4410648 (1983-10-01), Kato et al.
patent: 4764539 (1988-08-01), Ladang
patent: 4806162 (1989-02-01), Ladang
European Search Report dated Mar. 4, 1993.
Database WPIL, Week 8950, Derwent Publications Ltd., London, GB; AN 89-366893 & JP-A-1 273 703 (The Yokohama Rubber Co. Ltd) Nov. 1 1989.
Database WPIL, Week 8623, Derwent Publications Ltd., London, GB; AN 86-147819 & JP-A-61 083 242 (The Yokohama Rubber Co. Ltd.) Apr. 26 1986.
Database WPIL, Week 8605, Derwent Publications Ltd., London, GB AN 86032012 & JP-A-60 252 646 (Showa Elec Wire KK.) Dec. 13 1985.
Akutagawa Keizo
Hachiya Kazuo
Hashimoto Takatsugu
Tanaka Makoto
Yagawa Kazuo
Ball Michael W.
Bridgestone Corporation
Krawczyk Nancy T.
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