METHOD FOR PRODUCING WET MASTER BATCH, AND VULCANIZED RUBBER OBTAINED BY USING THE WET MASTER BATCH

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a wet master batch excellent in dispersibility of carbon black, and to provide a vulcanized rubber obtained by using the wet master batch.;SOLUTION: The method for producing the wet master batch includes a process for mixing a slurry solution containing carbon black and a rubber latex solution and coagulating and drying the resulting mixture. In the method, the slurry solution is injected into a prescribed container, then the liquid pressure of the slurry solution at the bottom part in the container is measured, and a slurry solution, in which the dispersion state of the carbon black is adjusted based on the relative deposition ratio of the carbon black, previously calculated based on the measured liquid pressure and the composition of the slurry, is used.;COPYRIGHT: (C)2011,JPO&INPIT