| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rubber wet master batch which contains a uniformly dispersed filler so as to suppress the re-coagulation of the filler over a long time, and which is a raw material for a cured rubber excellent in exothermic property, durability and rubber strength; and to provide a process for producing the master batch. <P>SOLUTION: A process for producing a rubber wet master batch contains at least a filler, a dispersing solvent and a rubber latex liquid as raw materials, comprising: a step (I) of, at the time of dispersing the filler into the dispersing solvent, adding at least one portion of the rubber latex liquid thereto, thereby preparing a slurry solution containing the filler to which rubber latex particles adhere; a step (II) of mixing the slurry solution with the rest of the rubber latex liquid, thereby preparing the rubber latex liquid containing the filler to which the rubber latex particles adhere; and a step (III) of solidifying and drying the rubber latex liquid containing the filler to which the rubber latex particles adhere. <P>COPYRIGHT: (C)2012,JPO&INPIT |
