The present invention is directed towards the use of low levels of a
desiccant material in a rubber compound, such as for use as a tire tread,
that allows for reduced cure times of tires cured under pressure, thereby
increasing tire production. The low level of desiccant material reduces
the blow point of the rubber compound by substantially eliminating blows
earlier in the pressure curing process, thereby allowing for the reduced
cure time of the tire under pressure. In one embodiment, low levels of no
greater than about 9 phr of desiccant material, which may include
generally a metal oxide (e.g. calcium oxide or magnesium oxide), are
provided in the rubber compound. The rubber compound including the low
levels of desiccant material may be cured, under pressure, at less than
30% of full cure of the rubber compound.