Patent ID: 6210793
Filing Date: 2001-04-03
Classification: C03C,Y10S,Y10T

Abstract:
An electrically chargeable substrate and a sheet that can be adhered to said substrate with a static charge, the electrically chargeable substrate comprising a thin film composed of a silane-based compound comprising CH.sub.3 (CH.sub.2).sub.n Si(O--).sub.3 repeating units, where n is between 0 and 25 or CF.sub.3 (CF.sub.2).sub.n (CH.sub.2).sub.2 Si(O--).sub.3 repeating units, where n is between 0 and 25, the silane-based compound bonded to the surface of an electrically insulating substrate through a covalent bond;wherein a volume electric resistivity of the electrically insulating substrate on which a thin film has not yet been formed is in the range of 1.times.10.sup.7-1.times.10.sup.19.OMEGA..multidot.cm; the thin film has a thickness in the range of 1-100 nm and a volume electric resistivity in the range of 1.times.10.sup.11 -1.times.10.sup.19.OMEGA..multidot.cm; and the sheet is adhered to the electrically chargeable substrate through the static charge that can be generated by rubbing the sheet on the thin film of the electrically chargeable substrate.