Patents Assigned to Afga Gevaert
  • Patent number: 10947402
    Abstract: An inkjet method for producing a solder mask in the manufacture of a Printed Circuit uses a solder mask inkjet ink containing at least one photo-initiator, at least one free radical polymerizable compound and at least one allyl sulfone compound as adhesion promoter. A high quality solder mask withstanding the high thermal stress during the soldering process while maintaining excellent physical properties is produced.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: March 16, 2021
    Inventors: Johan Loccufier, Rita Torfs, Marion Sauvageot
  • Patent number: 10619066
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles and less than 50 ?mol/g metal of an inorganic acid or a compound capable of generating such an acid during curing of a metallic layer or pattern formed from the dispersion. The presence of such small amounts an inorganic acid increases the conductivity of metallic layers or patterns formed from the metallic nanoparticle dispersions at moderate curing conditions.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 14, 2020
    Assignee: AFGA-GEVAERT
    Inventors: Dirk Bollen, Nicolas Vriamont, Johan Loccufier
  • Patent number: 7427769
    Abstract: The invention relates to an image carrier for the storage of X-ray information, as well as a corresponding system and method for the processing of such an image carrier. In order to improve the reliability when taking account of the sensitivity of the image carrier to X-radiation, the image carrier includes an electronic memory for the storage of calibration data of the image carrier that represent a measure of the sensitivity of the image carrier to X-radiation and can be used in a processing of image signals that are obtained on a reading of the X-ray information from the image carrier.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: September 23, 2008
    Assignee: Afga-Gevaert HealthCare GmbH
    Inventors: Werner Haug, Walter Encke, Oskar Hujer
  • Publication number: 20050042556
    Abstract: A process for preparing a substantially transparent conductive layer configuration on a support, the layer configuration comprising in any order at least a first layer containing an intrinsically conductive polymer optionally containing structural units represented by formula (I): wherein n is larger than 1 and each of R1 and R2 independently represents hydrogen or an optionally substituted C1-4 alkyl group or together represent an optionally substituted C1-4 alkylene group or an optionally substituted cycloalkylene group, preferably an ethylene group, an optionally alkyl-substituted methylene group, an optionally C1-12 alkyl- or phenyl-substituted ethylene group, a 1,3-propylene group or a 1,2-cyclohexylene group; and a second layer consisting of a non-continuous layer of conductive silver, the process comprising the step of: preparing the second layer by a photographic process; and light emitting diodes, photovoltaic devices, transistors and electroluminescent devices comprising a layer configuration p
    Type: Application
    Filed: August 21, 2003
    Publication date: February 24, 2005
    Applicant: AFGA-GEVAERT
    Inventors: Frank Louwet, Tom Cloots, Hieronymus Andriessen
  • Patent number: 6730243
    Abstract: A CsBr:Eu phosphor showing a narrow emission spectrum upon UV-excitation and panels including such a phosphor are disclosed. Also methods for preparing such a phosphor have been described.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: May 4, 2004
    Assignee: Afga-Gevaert
    Inventors: Paul Leblans, Luc Struye
  • Patent number: 6573036
    Abstract: A single-side coated light-sensitive silver halide photographic film material has been disclosed, having on one side of a subbed support, one or more light-sensitive silver halide emulsion layer(s) overcoated with an outermost protective layer; and, at the other side of said support, a backing layer, covered with a protective outermost layer, characterized in that at least said backing layer is provided with a layer wherein, besides a cross-linked or cross-linkable first binder an organic component free from cross-linking upon reaction with a hardener is present as a second binder having a low molecular weight.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: June 3, 2003
    Assignee: Afga-Gevaert
    Inventors: Mark Van den Zegel, Francis Vanhoudt, Frank Ruttens, Guy Damen
  • Patent number: 6537722
    Abstract: A recording material for producing offset printing plates includes: a support having a hydrophilic surface, and an infrared-imageable layer including a) a component which is capable of absorbing infrared radiation and converting the infrared radiation to heat, b) a compound which is capable of releasing acid under the action of the heat generated by component a), and c) a polymeric binder having at least one group which is cleaved by the acid released from the compound b), and at least one hydrophilic group, and wherein the layer becomes soluble in an aqueous-alkaline developer in areas struck by infrared radiation.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: March 25, 2003
    Assignee: Afga-Gevaert AG
    Inventors: Mathias Eichhorn, Karin Maerz, Fritz-Feo Grabley
  • Patent number: 6238838
    Abstract: A positive-working, radiation-sensitive mixture which contains an organic, polymeric binder which is insoluble in water but soluble or at least swellable in aqueous alkaline solution and at least one IR-absorbing dye, is described. A daylight-insensitive recording material which can be provided with an image using IR radiation and has a substrate and a layer comprising the mixture is also disclosed. After imagewise exposure, in particular to IR laser beams, and development with an aqueous alkaline solution, an offset printing plate can be formed therefrom.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 29, 2001
    Assignee: Afga Gevaert
    Inventors: Otfried Gaschler, Andreas Elsaesser, Fritz-Feo Grabley, Joerg Jung, Engelbert Pliefke, Hans-Joachim Schlosser
  • Patent number: 6221572
    Abstract: A color photographic material having a support and at least one light-sensitive silver halide emulsion layer and at least one color coupler associated with the latter, wherein the silver halide emulsion layer contains at least one compound of formula (I) wherein m denotes 0, 1, 2, 3 or 4, n denotes 2, 3, 4, 5 or 6, R1 denotes a di- to hexavalent group, R2 denotes alkyl, alkenyl, cycloalkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, acyl, alkoxycarbonyl, aryloxycarbonyl, hydroxy, halogen, cyano, —SO2R5, —SOR5, —CON(R5)R6 or —SO2N(R5)R6, L1 denotes alkylene, arylene, aralkylene or alkylidene, L2 denotes L3, L4 denote a C1-C3 alkylene which is optionally substituted, R5 denotes alkyl or aryl, and R6 denotes H or R5, wherein L2 and X are as defined in the specification, is distinguished b improved stability to light.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: April 24, 2001
    Assignee: Afga-Gevaert Naamloze Vennootschap
    Inventors: Jörg Hagemann, Günter Helling, Heinrich Odenwälder
  • Patent number: 6197472
    Abstract: The present invention relates to a recording material having a substrate and a negative-working, radiation-sensitive layer which contains a diazonium salt, metal-free colored pigments dispersed in an organic polymeric binder, transparent spacer pigments having a pore volume of more than 1.0 ml/g and a polymeric binder. The predispersal of the colored pigments is achieved by milling with an organic polymeric binder containing hydroxyl groups, some or all of which have been reacted with a di- or polycarboxylic anhydride so that the binder has an acid number of from 20 to 200. Printing plates in which the printing parts have a clearly visible contrast relative to the substrate can be produced from the recording material.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: March 6, 2001
    Assignee: Afga-Gevaert N.V.
    Inventors: Klaus-Peter Konrad, Andreas Elsaesser, Frank Fischer, John Kynaston Davies
  • Patent number: 6171756
    Abstract: Organic photoprecursors of amines are provided for use in photosensitive imaging systems, finding particular application in the preparation of lithographic printing plates. Said photoprecursors generate free amines on exposure to long wavelength UV or visible radiation, have high solubility in organic solvents, and include photolabile 2-nitrobenzyl functional groups. Methods for the synthesis of the photoprecursors are described, and the use of the said photoprecursors for the production of printing plates using both positive working and negative working techniques are discussed.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 9, 2001
    Assignee: Afga-Gevaert, N.V.
    Inventors: Maria de Lurdes dos Santos Cristiano, John Kynaston Davies, Sharon Dowd, Robert Alexander Walker Johnstone, Michael John Pratt, John Robert Wade
  • Patent number: 5886354
    Abstract: A single sheet photostimulable phosphor screen, wherein the screen contains in consecutive order (1) a support, (2) a continuous phosphor-containing layer, and permanently and contiguously united therewith (3) a grid structured phosphor-containing layer containing a phosphor different from the phosphor contained in the continuous phosphor-containing layer (2), the grid structured layer.(3) containing parallel rows of phosphor-containing stripes, and the different phosphors have a different X-ray absorption capacity with respect to different energy levels of X-ray radiation.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: March 23, 1999
    Assignee: AFGA-Gevaert, N.V.
    Inventor: Paul Leblans
  • Patent number: 5882839
    Abstract: A photosensitive element is disclosed, and a process of forming an image with it, comprising, in order, a support with an optional subbing layer (1), a metal image forming layer, a photosensitive layer, and a transparent cover sheet with an optional subbing layer (2).After exposure a delamination step is performed thereby giving rise to a positive and a negative metal image. In a most preferred embodiment the metal layer is a bismuth layer.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: March 16, 1999
    Assignee: Afga-Gevaert
    Inventors: Luc Leenders, Eddie Daems, Robert Van Haute, Rita Torfs
  • Patent number: 5786128
    Abstract: The present invention discloses a method for making a lithographic printing plate comprising the steps of:(1) image-wise exposing an imaging element having on a hydrophilic surface of a lithographic base a photosensitive layer comprising a photosensitive polymer containing aryl-diazosulfonate units;(2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and supplying an aqueous dampening liquid and/or ink to said photosensitive layer while rotating said print cylinder.Excellent printing results are obtained with a printing plate perpared according to the above described method. The lithographic base may be an anodized aluminium or a support provided with an ink-repellant layer containing a cross-linked hydrophilic binder.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: July 28, 1998
    Assignee: AFGA-Gevaert, N.V.
    Inventors: Joan Vermeersch, Marc Van Damme
  • Patent number: 5775501
    Abstract: Daylight loading packaging for photographic paper in the form of rolls comprising lateral, annular flanges and a casing lengthening piece welded to the flanges, which casing lengthening piece is connected at one end to the start of the paper roll and is free at the other end, the flanges presenting a concentric annular hole the edge of which is welded to the edge of the roll tube and which on one side of a paper base has at least one blackened layer forming a light barrier, at least one aluminium layer forming a vapour barrier, at least one layer which increases resistance to puncture, and furthest away from the paper base a layer which permits welding to the casing lengthening piece and the roll tube, and which has on the other side of the paper base a layer of a synthetic polymer applied by extrusion which imparts a tension to the material which prevents an inward collapse of the flange (seen from the roll).
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: July 7, 1998
    Assignee: AFGA-Gevaert Aktiengesellschaft
    Inventors: Helmut Wleklinski, Georg Fryda, Rene Degroeve
  • Patent number: 5624784
    Abstract: A kit of parts for preparing an alkaline processing liquid for use in preparing a lithographic printing plate according to the silver salt diffusion transfer process, and comprising all necessary active compounds for preparing said alkaline processing liquid, said active compounds being contained in parts physically separated from each other, at least one of said parts comprising an inorganic alkali in solid form and at least one of said other parts comprising a hydrophobizing agent and being substantially free from inorganic alkali.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: April 29, 1997
    Assignee: Afga-Gevaert N.V.
    Inventors: Jos Vaes, Renaat Ceulemans, Lode Deprez
  • Patent number: 5587269
    Abstract: The present invention provides a thermal imaging process using (i) a donor element comprising on a support having a thickness of 3-10 .mu.m a donor layer comprising a binder, a thermotransferable reducing agent capable of reducing a silver source to metallic silver upon heating and particles protruding from the surface of said donor layer and (ii) a receiving element comprising on a support a receiving layer comprising a silver source capable of being reduced by means of heat in the presence of a reducing agent, said thermal imaging process comprising the steps ofbringing said donor layer of said donor element into face to face relationship with said receiving layer of said receiving element,image-wise heating a thus obtained assemblage, thereby causing image-wise transfer of an amount of said thermotransferable reducing agent to said receiving element in accordance with the amount of heat supplied by said thermal head andseparating said donor element from said receiving element.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: December 24, 1996
    Assignee: Afga-Gevaert N.V.
    Inventor: Geert Defieuw
  • Patent number: 5142333
    Abstract: An electrostatic latent image developing assembly having a first feed passage for feeding developing material in a first direction, a second feed passage for feeding the developing material in a direction opposite to the first direction. A helical feed screw in the first feed passage, a helical supply screw in the second feed passsage for supplying part of the developing material to a developing sleeve, a connection between both sets of adjacent ends of such feed passages for permitting the developing material to circulate between the passages, wherein the feed screw and supply screw are disposed in parallel relation and the supply screw is provided with buckets around its periphery, the supply screw having a helical blade for advancing developing material in the second feed passage axially thereof while the buckets move the material circumferentially. Preferably, the radius of the helical blade reaches to at least one-half the depth of the buckets.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: August 25, 1992
    Assignee: Afga-Gevaert N.V.
    Inventors: Marcel F. Verbeek, Robert F. Janssens, Jan A. Zwijsen, Luc K. Van Aken, Serge M. Tavernier
  • Patent number: 4923786
    Abstract: A granulate mixture containing at least three different granulates of solid constituents of a color photographic developer, one granulate containing the protective agent against oxidation, another granulate containing the developer substance and the third granulate containing the alkali donor, is pourable, produces no dust, rapidly dissolves in water, has unlimited durability and gives reliable, reproducible results on development.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: May 8, 1990
    Assignee: Afga-Gevaert Aktiengesellschaft
    Inventors: Peter Kuhnert, Peter Feyen
  • Patent number: 4906854
    Abstract: An exposed and developed filmstrip has a longitudinally extending row of image areas and a row of perforations along each longitudinal margin. The image areas and perforations have no fixed positional relationship. The filmstrip is conveyed lengthwise from a scanning station to an operating station. A procedure involving the filmstrip is performed at the operating station when an image area is present at such station. To establish the arrival of an image area at the operating station, the filmstrip is photoelectrically scanned at the scanning station to locate the leading edge of the image area. The leading edge is conveyed from a preselected location, which may or may not be the scanning station, to the oeprating station along a path of fixed length. The length of the path is expressed in terms of the spacing between neighboring perforations of a row and the arrival of the leading edge at the operating station is established by counting perforations as the filmstrip travels.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: March 6, 1990
    Assignee: Afga-Gevaert Aktiengesellschaft
    Inventors: Hans-Jurgen Rauh, Helmut Treiber