Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1990-04-16
1992-09-08
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 59, 430 83, 430 95, 430900, 430 74, 430 78, 430 79, G03G 5047, G03G 509
Patent
active
051457598
ABSTRACT:
An electrophotographic recording material comprising on an electrically conductive support a negatively chargeable photoconductive recording layer which contains in an electrically insulating organic polymer binder material at least one photoconductive n-type pigment substance and at least one p-type photoconductive charge transport substance as defined herein by a general formula (I) to (V), wherein said layer has a thickness in the range of 4 to 40 .mu.m and comprises 8 to 80% by weight of said n-type pigment substance and 0.01 to 40% by weight of said p-type charge transport substance that is molecularly distributed in said electrically insulating organic polymeric binder material that has a voluem resistivity of at least 10.sup.14 Ohm-m, and wherein said recording layer in electrostatically charged state requires for 10% and 90% discharge respectively exposures to conductivity increasing electromagnetic radiation that differ by a factor 4.5 or less.
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patent: 4882253 (1989-11-01), Kato et al.
patent: 4923774 (1990-05-01), Van der Auweraer et al.
De Meutter Stefaan K.
Monbaliu Marcel J.
Terrell David R.
Agfa-Gevaert N.V.
Martin Roland
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