| 摘要 |
PURPOSE:To obtain a recording material without receiving damage due to heat even under a condition imparting sufficient dot density, that is, under a high voltage-current applying condition, by using a resistor layer wherein carbon black is compounded with a specific polyestercarbonate resin. CONSTITUTION:Carbon black to be used has properties such that a pore volume is 2.5 cc/g or less, the max. peak position of pore distribution is 200Angstrom or more and DBP absorption amount is 20-250 ml/100g. A polyestercarbonate resin is composed of repeating units represented by general formulae (I), (II) (wherein R1 and R2 are respectively independently a divalent group represented by A,-S-, -SO-, -SO2-, -O- or B) and the constitutional wt. ratio is pref. 90:10-10:90. The mixing ratio of carbon black and the polyestercarbonate resin is 10:90-60:40 in a wt. ratio. |
