摘要 |
PROVIDED IS A NATURAL RUBBER OBTAINED BY DRYING A GATHERED NATURAL RUBBER LATEX WITHOUT COAGULATING, WHEREIN A DRUM DRYER AND/OR A CONVEYOR TYPE DRYER ARE USED FOR DRYING. FURTHER, PROVIDED ARE A PRODUCTION PROCESS FOR A NATURAL RUBBERFILLER MIXTURE PREPARED BY ADDING AT LEAST ONE OF CARBON BLACK AND INORGANIC FILLERS TO A NATURAL RUBBER LATEX, A NATURAL RUBBER ADDED A VISCOSITY STABILIZER COMPRISING HYDRAZIDE COMPOUNDS OR ESTERS OF AROMATIC OR ALIPHATIC POLYCARBOXYLIC ACID DERIVATIVES TO THESE NATURAL RUBBER AND NATURAL RUBBER-FILLER MIXTURE, AND A RUBBER COMPOSITION WHICH IS PREPARED USING THE ABOVE NATURAL RUBBERS AND WHICH IS EXCELLENT IN PRODUCTIVITY, ABRASION RESISTANCE AND FRACTURE RESISTANCE.
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