| 摘要 |
PURPOSE:A composition suitable as tires or hoses, having both high reinforcing properties and high wear resistance and improved heat build-up, obtained by blending rubber such as natural rubber, etc., with specific carbon black. CONSTITUTION:(A)100pts.wt. one or more kinds of rubber selected from natural rubber and diene synthetic rubber are blended with (B) 40-120pts.wt. carbon black which has 130-160m<2>/g specific surface area of nitrogen adsorption (N2 SA), 110-150ml/100g oil absorption amount of dibutyl phthalate (DBP), >=121 specific tinting power (TINT), 0.7-1.0 ratio of DELTAD50/Dst of half-value width (DELTAD50) of aggregate diameter distribution and most frequency value (Dst) of aggregate diameter distribution, 1.20-1.45 ratio of Dw/Dn of weight-average particle diameter (Dw) by electron microscope and arithmetical means particle diameter (Dn) and <=6.5nm standard deviation of Dn.
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