Importance

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Abstract

A recipe is provided for an aqueous inside and/or outside paint for green tires which are to be vulcanized in a mold in cooperation with a hot, pressurized inner bladder. The aqueous paint contains no silicone release agent, hydrocarbon solvent or rubber latex, but only an air bleeding pigment such as carbon black for the outside paint or mica for the inside paint, and surfactant which are blended into a hot wax melt to form a stable dispersion. The melt contains a major amount of a lower melting wax such as paraffin wax, and a minor amount of a higher melting wax such as carnauba wax based on the total weight of wax. The carnauba wax may be dispensed within the outside tire paint for passenger car tires. The essential ingredients for the inside tire paint are the same as those used for the outside tire paint, except that the ratios in which they are present are different to accommodate the disparate requirements for flow of the tire's rubber surfaces during the vulcanizing cycle.

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First Claim