| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a natural rubber master batch useful for producing a natural rubber composition improved in processability/reinforcing ability and abrasion resistance. SOLUTION: The method for producing the natural rubber master batch comprises the step of mixing together a natural rubber latex and carbon black slurry in a liquid phase, the step of coagulating the mixture and the step of washing the resultant coagulate, wherein the pH of the water fraction of the coagulated particles after the washing step is brought to 5.5 or higher but lower than 7. COPYRIGHT: (C)2006,JPO&NCIPI |
