Abstract:
A photoconductive imaging member containing a photogenerating layer and a triphenylamine charge transport layer of the formula or optionally mixtures thereof wherein R 1 , R 2 , R 3 , R 4 , and R 5 are each independently alkyl, aryl, hydrogen, alkoxy, and the like.
Abstract:
A photoconductive member containing a supporting substrate, a photogenerating layer, and a charge transport layer and wherein the photogenerating layer comprises a photogenerating component, and an electron transport component.
Abstract:
A photoconductive imaging member comprised of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, charge transport components, and a certain electron transport component, and a certain polymer binder.
Abstract:
An organic light emitting device composed of: a first electrode; a seco nd electrode; and a luminescent region including an organic electroluminescent material between the first electrode and the second electrode, wherein one o f the first electrode and the second electrode includes both a substantially transparent charge injecting layer adjacent to the luminescent region and an electricall y conductive light absorbing layer.
Abstract:
A process for the preparation of titanyl phthalocyanine which comprises dissolving a titanyl phthalocyanine in a solution of trifluoroacetic acid and methylene chloride; adding the resultant solution to a solvent system that will enable precipitation; and separating the desired titanyl phthalocyanine from the solution followed by an optional washing.
Abstract:
Disclosed is a process for forming secure images which comprises electrostatically charging an imaging member (1); imagewise exposing the charged member, thereby forming a latent image on the member; developing the latent image with a liquid developer comprising a liquid medium, a charge control additive, and toner particles comprising a colorant and a polymeric material; allowing the developed image to dry on the imaging member; contacting the portion of the imaging member with the dry developed image with a substantially transparent sheet (18) having an adhesive material on the surface thereof in contact with the imaging member, thereby transferring the developed image from the imaging member to the substantially transparent sheet; contacting the adhesive surface of the substantially transparent sheet with the developed image with a paper sheet (25) having a polymeric coating on the surface that is in contact with the substantially transparent sheet; and applying heat and pressure to the substantially transparent sheet and the paper sheet at a temperature and pressure sufficient to affix the image permanently to the paper. The resulting document is a paper sheet covered with the transparent sheet, with the developer material that forms the image being situated between the paper sheet and the transparent sheet. The disclosed process is generally useful for applications such as passport photographs, identification badges, banknote paper, and the like.
Abstract:
In ink-jet printing, the ink consists of: (1) an emulsion of an organic phase (I) in an aq. phase (II), (I) contg. oil(s) and/or wax(es); (2) a suspension of wax particles (III) in (II); (3) (I), contg. wax with a m.pt. of 40-150 deg.C and an oil-soluble dyestuff, and (II); (4) (II) and (I) contg. oil and a colorant (IV); (5) (II) and (I) contg. an oil-soluble resin (V) and oil; (6) (III), water and colourant (IV); or (7) (II) and (I) contg. a liquid wax and (IV). The claims also cover an ink of type (1), in which over 75% of (II) is water; and inks which are emulsions of (I) in (II), in which (I) contains (a) a polyhalogenated polyolefin resin and an oil, (b) a liquid wax free from oil or (c) an oil free from wax and polymer. Ink (I) also contains (IV) in (I) and/or (II); and suitable (I) contain : (a) liquid wax, which may contain a pigment and/or dyestuff or be uncoloured; (b) an oil and an oil-soluble wax, pref. with a m.pt. under 150 deg.C, esp. under 100 deg.C, partic. 40-100 deg.C; (c) an oil and (V), pref. a chlorinated polyolefin; (d) oil with a viscosity of ca. 2-150 cP at 40 deg.C; (e) (III) contg. pigment and/or dyestuff, with a m.pt. of 40-150 deg.C; (f) oil contg. oil-soluble dyestuff(s) and/or pigment(s) and opt. (V); (g) liquid wax, an oil-soluble dyestuff and opt. an oil; (b) wax free from oil; or (i) oil free from wax. ADVANTAGE - The ink has acceptable spraying properties and gives good quality prints, which are resistant to water and rubb
Abstract:
Disclosed is a polysilylene hole transporting compoundwherein R,, R 2 , R 3 , R 4 , R 5 , and R 6 are independently selected from alkyl, aryl, substituted alkyl, substituted aryl, and alkoxy; and n, m, and p are numbers that represent the percentage of the monomer unit in the total polymer compound. for use in layered imaging members comprising