Carbon black, methods of producing carbon black, and rubber preparations in which carbon black is added

Abstract

The invention describes a new carbon black exhibiting superior electrical insulation properties compared to previous versions, while maintaining certain traditional characteristics when incorporated into rubber components. and rubber compounds to which this carbon black is added. The proposed carbon black has a specific surface area for nitrogen adsorption (NiAi) not less than 20 (ni / g) but less than 50 (m2 / g), a DBP adsorption coefficient not less than 120 ml / 100 g but less than 150 ml / 100 g, and a Della polar component of surface free energy, ranging from 2 (111.1 / 0.12) to 40 mJ / m2, and a concentration of strong acid groups ranging from 0.2 μmol / m2 to 0.6 μmol / m2.