TH13459A - Carbon Black for the tread of the tire. - Google Patents

Abstract

Carbon black for the tread of the tires with a specific surface area for nitrogen absorption. (N2SA, nitrogenadsorption specitic surface area) is 60-160 m2 / g, the DBP (dibutyl phthalate) absorption value is 90-150 mL / 100 g, where the free volume of Internal combination (VP, intraggregate void volume, ml / g) corresponding to the will expressed by formula (1) following and the combination properties corresponding to the will expressed by formula (2) following. First, or will, expressed by formulas (3) and (4), respectively, the following characteristics (2), when measured by the sendrial classification method Vp> _ 0.00976 x DBP - 0.0358. ........ (1) (triangle) Dst / (0.601 x Dst + 4.02) < _ 1.00 ........ (2) Vp > _ 0.00976 x DBP - 0.1309 ... ...... (3) (triangle) Dst / (0.601 x Dst + 23.71) < _ 1.00 ........ (4) where Dst is the difference of 2 stokes diameter. (stoke) that can differ in 50% of the maximum frequency in the combined stoke diameter distribution curve and Dst (nm) is The stoke diameter of the maximum frequency in the dispersion curve. Combined stoke diameter

Claims (2)

1. Carbon Black for the front of the tires of the car wheels with surface area. The specific adsorption in nitrogen (N2SA) is 60-160 m2 / g. DBP (dibutyl phthalate) absorption value is 90-150 ml / 100 g. The corresponding internal (ml / g) combinations, the will expressed by the following formula (1), and the combination properties corresponding to the will expressed by the following formula (2) when measured. By classification method Vp> _ 0.00976 x DBP - 0.0358 ......... (1) (triangle) Dst / (0.601 x Dst + 4.02) < _ 1.00 ......... (2) where Dst is the difference in the diameter of 2 stokes (stoke) that is different in 50% of the maximum frequency in the diameter distribution curve. The middle of the combined stoke and Dst is the stoke diameter. (Nm) of frequency Maximum in the combined stone diameter distribution curve 2. Carbon Black for the tread surface area of the tire. Nitrogen adsorption specific page (N2SA) is 60-160 m2 / g. Absorption value (DBP) is 90-150 mL / 100 g. G) corresponding to the will expressed by formula (3) following and the combination properties corresponding to the purpose expressed by formula (4) following when measured by the zendriffi classification method. Wedge Vp > _ 0.00976 x DBP - 0.1309 ......... (1) (triangle) Dst / (0.601 x Dst + 23.71) < _ 1.00 ......... (2 ) Where Dst is the difference in 2-stoke diameters that can vary in 50% of the maximum frequency in the diameter distribution curve. The combined stoke center and Dst (nm) is the stoke diameter. Of the maximum frequency in the combined stoke diameter distribution curve