| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing rubber powder or a rubber granule containing a silica filler and/or an oxidizing filler based on an aqueous rubber emulsion or a latex. SOLUTION: The manufacturing method comprizes preparing a water suspension of a silica filler and/or an oxidizing filler, a hydrophobicity imparting agent comprizing a polysiloxane and a nonionic surfactant, adding a rubber latex emulsion, adjusting pH with an acid, separating a precipitated product, drying and finally reducing its moisture content to less than 3%. COPYRIGHT: (C)2003,JPO
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