DISPERSIBLE GRANULES OF GAS BLACK Russian patent published in 1999 - IPC

FIELD: carbon materials. SUBSTANCE: invention aims at preparing gas black granules, mother mixtures or concentrates based on the latter. Gas black in loose state is characterized by absorption of p-dibutyl phthalate at least 92 cu.cm/100 g. Gas phase is moistened with organic compound or mixture of organic compounds with melting point at least 25 C, decomposing at agglomeration temperature by less than 5% and having viscosity at agglomeration temperature below 2 Pa s at shear rate 10 s^-1. Gas black and organic compound(s) are agglomerated in absence of water to form granules. The latter can be used for preparing mother mixtures or concentrates to introduce gas black into polymer medium. EFFECT: enabled preparation of non-dusting and wear-resistant gas black granules. 15 cl, 8 tbl, 40 ex