摘要 |
An oxidized carbon black (gas black) is prepared within the MCC (medium color channel black) area showing primary particle sizes of an average diameter of 16 to 18 nm and a content of volatiles of at least 15% which, as secondary characteristics, has a specific surface area (BET) of 300 to 420 m2/g, an oil absorption (stiff paste) conducted on carbon black powder of 430 to 560 g/100 g, an oil absorption (stiff paste) conducted on carbon black beads of 370 to 450 g/100 g, a pH value of 2 to 5, a nigrometer index of 68 to 72 and a maximum content of volatiles of 25%. The carbon black is used as a pigment in high jet black lacquers. |
申请人 |
DEUTSCHE GOLD- UND SILBER-SCHEIDEANSTALT VORMALS ROESSLER |
发明人 |
EISENMENGER,EDITH;ENGEL,RICHARD,DIPL.-CHEM.DR.;KUEHNER,GERHARD,DIPL.-CHEM.DR.;RECK,REINHOLD,DIPL.-ING.DR.-ING.;SCHAEFER,HANS;VOLL,MANFRED,DIPL.-CHEM.DR. |