Carbon black useful for pigment for black lacquers
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United States of America Patent
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-
Dec 28, 1982
Issued Date -
N/A
app pub date -
Jun 1, 1981
filing date -
Oct 25, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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 m.sup.2 /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.
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