High specific gravity carbon black and articles including tires having at least one component of rubber which contains such carbon black

摘要

This invention relates to a relatively high specific gravity carbon black as a carbon black which has been modified to contain at least one metal compound on the surface of and within a carbon black as a composite thereof. Said modification of carbon black may be administered by a wet method in which the carbon black is coated with a suitable metal compound or by a hot method in which a carbon black is modified by co-fuming carbon black with a suitable metal compound. In further accordance with this invention, an article of manufacture is provided, such as for example a tire, having at least one component of a rubber composition which contains such modified, high specific gravity, carbon black composite.