Bus or truck tire having cap/base tread

Details Bus or truck tire having cap/base tread Bus or truck tire having cap/base tread

2006-07-11

2006-07-11

Maki, Steven D. (Department: 1733)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C524S492000

Reexamination Certificate

active

07073549

ABSTRACT:
The present invention provides a rubber composition for base tread having reduced heat build-up characteristics and excellent reinforcing property, and a pneumatic tire using the rubber composition for the base tread. The rubber composition for base tread of the present invention comprises 30 to 40 parts by weight of carbon black having iodine adsorption amount of at least 115 mg/g, 5 to 10 parts by weight of silica and 1.2 to 2.2 parts by weight of sulfur based on 100 parts by weight of a rubber component, wherein the total amount of the carbon black and the silica is at most 45 parts by weight. The pneumatic tire of the present invention is obtained by using 20 to 80% by volume of a base tread based on the total volume of a tread comprising the rubber composition.

REFERENCES:
patent: 4835209 (1989-05-01), Kitagawa et al.
patent: 5225011 (1993-07-01), Takino et al.
patent: 0 708 136 (1996-04-01), None
patent: 0 738 614 (1996-10-01), None
patent: 0 942 041 (1999-09-01), None
patent: 10-95204 (1998-04-01), None
patent: 11-165502 (1999-06-01), None
patent: 2001-172435 (2001-06-01), None
Mark et al, Science and Technology of Rubber, pp. 432-437, 1994.

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