Rubber composition employing soft black and a thermosetting resi

Details Rubber composition employing soft black and a thermosetting resi Rubber composition employing soft black and a thermosetting resi

1981-03-18

1982-04-27

Kimlin, Edward C.

Resilient tires and wheels

Tires, resilient

Patches

152357R, 152362R, 152362CS, 152374, 524496, 524511, B60C 100, B60C 1506, C08K 900

Patent

active

043265766

ABSTRACT:
Disclosed is a high hardness rubber composition having a hardness of at least 92, which comprises 100 parts by weight of a rubber, 55 to 95 parts by weight of soft black having an average particle size of 40 to 80 millimicrons, 5 to 30 parts by weight of a thermosetting resin and a small amount of a curing agent, the sum of the amounts of the soft black and thermosetting resin being 60 to 100 parts by weight per 100 parts by weight of the rubber.
This high hardness rubber composition is advantageously used as a tire reinforcement for the rim cushion portion or for both the rim cushion portion and bead filler.

REFERENCES:
patent: 3514417 (1970-05-01), Bickel et al.
patent: 3671478 (1972-06-01), Doyle et al.
patent: 3746669 (1973-07-01), Dunnom et al.
patent: 3937862 (1976-02-01), Dillenschneider
patent: 4139040 (1979-02-01), Samoto et al.
patent: 4250939 (1981-02-01), Shibata et al.
patent: 4285381 (1981-08-01), Furukawa et al.
Rubber Technology and Manufacture, Chemical Rubber Co., 1971, pp. 174-188.

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