Patent ID: 10179848

Abstract:
A first tire member manufacturing method includes an operation in which a master batch is made, and an operation in which the master batch, peptizing agent, and processing additive are mixed. The operation in which the master batch is made includes an operation in which carbon-black-containing pre-coagulation rubber latex is coagulated to obtain a coagulum, an operation in which a compound according to Formula (I), below, is added to the water-containing coagulum, and an operation in which the compound according to Formula (I) is dispersed within the coagulum.In Formula (I), R1 and R2 each indicates a hydrogen atom, an alkyl group having 1 to 20 carbons, an alkenyl group having 1 to 20 carbons, or an alkynyl group having 1 to 20 carbons. R1 and R2 may be the same or different. M+ indicates sodium ion, potassium ion, or lithium ion.