| 摘要 |
PROBLEM TO BE SOLVED: To provide an acetylene black having excellent conductivity-imparting ability, a coating material using the same, a nonaqueous secondary battery electrode and a resin-rubber composition using the same. SOLUTION: The acetylene black has characteristic values measured by JIS methods of a BET specific surface area of 30-90 m<SP>2</SP>/g, a DBP absorption amount of 50-120 ml/100 g and a pH≥9. The coating material, the nonaqueous secondary battery electrode and the resin-rubber composition each use the acetylene black as a conductive agent. The method for producing acetylene black comprises in producing acetylene black by supplying an acetylene gas to a reaction furnace and subjecting it to thermal decomposition or incomplete combustion, spraying an oxygen gas from the circumference of a supply port to the reaction furnace of the acetylene gas. COPYRIGHT: (C)2009,JPO&INPIT |
