| 摘要 |
<p>New photoconducting compositions for electrophotography Improved sensitivity is obtained in the photoconducting compn. (photoconducting substance, pref. a sensitiser, and a polymer binder which is a resin with a halogen-aryl-ketone-formaldehyde base) by including a polycondensation resin, pref. a polyester, esp. the polycondensation product of terephthalic acid + ethylene-glycol + 2,2-bis-4-(beta-hydroxyethoxy)phenylpropane, or of terephthalic acid + isophthalic acid + neopentylglycol + ethylene glycol, or a 2,2-bis(4-hydroxyphenyl)propane polycarbonate.</p> |
