Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1981-12-16
1983-07-05
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 58, 430 64, 430 96, 430900, G03G 506
Patent
active
043918883
ABSTRACT:
Organic photoconductive elements which are stable and sensitive over a broad range of the spectrum, including the near infrared band, having a charge generating layer and a charge transport layer carried on an electroconductive support are disclosed. The invention involves the use of a first layer between the support and the charge generating layer which is capable of functioning as (i) an adhesive bonding layer on the electroconductive support to provide a receptive and retentive base layer for the charge generating layer and (ii) as a barrier layer to prevent substantially any leakage of charge from the surface of the photoconductor, characterized by the first layer comprising at least one polycarbonate having a weight average molecular weight ranging from about 25,000 to about 45,000, in combination with a charge generating layer that comprises at least one organic pigment which is sensitive to near infrared radiation.
REFERENCES:
patent: 3713821 (1973-01-01), Angelini
patent: 4297426 (1981-10-01), Sakai et al.
patent: 4301224 (1981-11-01), Kozima
Berman Michael F.
Chang Mike S. H.
Pitney Bowes Inc.
Scolnick Melvin J.
Scribner Albert W.
Soltow, Jr. William D.
Welsh John D.
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