Photoconductive elements sensitive to infrared radiation having a bromoindium phthalocyanine pigment
AssigneeEastman Kodak Company
InventorsYann Hung, Michael T. Regan, William J. Staudenmayer
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Abstract
A novel C-centered monoclinic bromoindium phthalocyanine pigment is obtained by reacting high-purity diiminoisoindoline with indium tribromide in the solvent, 1-methyl-2-pyrrolidinone. Multiactive photoconductive elements prepared by dispersion-coating a charge-generation layer containing this pigment have high sensitivity to near-infrared radiation.
Claims5
A multiactive photoconductive element comprising an electrically conductive support, a charge-generation layer and a charge-transport layer, wherein the charge-generation layer comprises dispersion-coated bromoindium phthalocyanine prepared by the reaction of high-purity diiminoisoindoline with indium bromide in the presence of 1-methyl-2-pyrrolidinone as the reaction solvent.
A photoconductive element comprising an electrically conductive support and a photoconductive layer which contains bromoindium phthalocyanine pigment having X-ray diffractogram major peaks at Bragg angles (2.theta.) of 7.4.degree., 16.7.degree., 25.3.degree., 27.5.degree. and 28.4.degree..
Dependencies are inferred from the claim text.