PROBLEM TO BE SOLVED: To obtain a carbon black which easily disperses into water. ;SOLUTION: This carbon black is obtained by the oxidation of carbon black having a nitrogen-adsorbing specific area (N2SA) of 80 m2/g or larger and a DBP oil-absorbing value of 70 ml/100 g or smaller. The resulting carbon black has a DUPA/Dst ratio of 1.5-2.0, wherein DUPA and Dst are an average particle size (nm) of the agglomerate and a Stokes mode diameter (nm) of the aggregate, respectively.;COPYRIGHT: (C)1999,JPO
展开▼
机译：解决的问题：获得易于分散在水中的炭黑。 ;解决方案：这种炭黑是通过氧化具有氮吸附比面积（N 2 SA）为80 m 2 / g或更大的炭黑而获得的DBP吸油值等于或小于70 ml / 100 g。所得炭黑的DUPA / D st 比为1.5-2.0，其中DUPA和D st 为团聚体的平均粒径（nm）和斯托克斯模式骨料直径（nm）.;版权：（C）1999，JPO
展开▼
