Patent
New diamino compound and photoreceptor using the same
Hideaki Ueda,秀昭 植田 +1 more
Reads0
Chats0
TLDR
In this article, the Ullmann reaction was used to obtain a new diamine compound, useful as a charge transport layer of photoreceptors or electroluminescent elements.Abstract:
PURPOSE:To obtain a new diamine compound, useful as a charge transport layer of photoreceptors or electroluminescent elements, capable of providing the photoreceptors excellent in characteristics such as sensitivity, charge transport properties or initial surface potential and improved in ozone resistance and light stability CONSTITUTION:A diamine compound expressed by formula I (Ar1 and Ar2 are alkyl, aralkyl, etc; R1 to R4 are H, alkyl, etc; X is O, S, etc), eg a compound expressed by formula II The aforementioned compound is obtained by carrying out the Ullmann reaction of, eg an iodide expressed by formula III with an amino compound expressed by formula IV in the presence of a basic compound catalyst such as a carbonate of an alkali metal in an aprotic polar solvent such as nitrobenzene at 100-250 degC under ordinary pressure For example, N-biphenyl-N-p-tolylamine is used as the amino compound expressed by formula IVread more
Citations
More filters
Patent
Organic EL element and organic EL display
TL;DR: In this article, an organic EL element comprising an organic thin film layer containing a light-emitting layer between an positive electrode and a negative electrode is defined, where n represents an integer.
Patent
Sealed-type electric compressor having refrigerant passage
TL;DR: In this paper, a radial refrigerant passage is located between the end surface of the main shaft and a motor rotor, where suctioned refrigerant is uniformly sprayed toward an entire coil.
Patent
Condensed eight-ring aromatic compound, and organic EL element and organic EL display using the same
TL;DR: In this paper, the authors presented an organic EL element which utilizes a novel condensed eight-ring aromatic compound, and has high color purity of red light and excellent light-emitting efficiency, light emitting luminance and the like.
Patent
Triarylamine compounds, compositions and uses therefor
Eric Maurice Smith,Nora Sabina Radu,Norman Herron,Arthur Dabrowski,Frederick P. Gentry,Gene M. Rossi,Gary A. Johansson +6 more
TL;DR: In this paper, the triarylamine compounds can be used as monomers to create homopolymers or copolymers, and compositions comprising such compounds, and electronic devices and applications are defined.
Patent
Organic photoreceptor, image forming method and apparatus
TL;DR: In this article, an organic photoreceptor which can form high resolution electrophotographic images by forming high resolution electrostatic latent images by using an image exposing light source of a semiconductor laser or a light emitting diode of the 350-500nm oscillation wavelength was provided.