Patents by Inventor Marcel Monbaliu

Marcel Monbaliu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6099997
    Abstract: A photosensitive recording material containing a support and a charge generating layer (CGL) in contiguous relationship (contact) with a charge transporting layer (CTL), containing an n-charge transporting material (n-CTM), wherein the binder of the charge generating layer (CGL) is made insoluble in methylene chloride by crosslinking, and the binder is composed essentially of one or more polyepoxy compounds self-crosslinked under the influence of an amine catalyst and/or crosslinked by reaction with at least one primary and/or secondary poly NH-group amine.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: August 8, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventors: David Terrell, Stefaan De Meutter, Marcel Monbaliu
  • Patent number: 5858913
    Abstract: Receiving element for use according to transfer printing, 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, a binder and a stabilizer selected from the group of benzotriazoles, heterocyclic mercaptanes, sulphinic acids, 1,3,4-triazo-indolizines, 1,3-dinitroaryl compounds, 1,2,3-triazoles, phthalic acids and phthalic acid derivatives.The receiving element provides images with higher stability at elevated temperatures and upon exposure to light.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: January 12, 1999
    Assignee: Agfa-Gevaert
    Inventors: Jean-Marie Dewanckele, Geert Defieuw, Marcel Monbaliu, Wilhelmus Janssens
  • Patent number: 5786118
    Abstract: A photoconductive recording material comprising a support and a charge generating layer (CGL) in contiguous relationship with a charge transporting layer (CTL) containing a p-charge transporting material (p-CTM), wherein the binder of said charge generating layer (CGL) has been made insoluble in methylene chloride by crosslinking, and said binder is composed essentially of at least one epoxy resin (1) as defined herein and/or at least one dialkanolamine-modified epoxy resin linked with at least one polyisocyanate.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: July 28, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventors: David Terrell, Stefaan De Meutter, Marcel Monbaliu
  • Patent number: 5763148
    Abstract: A silver halide photographic activation material is disclosed comprising a film support, on one or both sides thereof at least one gelatino silver halide emulsion layer and between said emulsion layer and said support a hydrophilic undercoat layer comprising as a binder at least 50% of a loaded latex polymer, said latex polymer being loaded with at least one developing agent, further characterised in that water absorption during activation processing is not higher than 2.5 g per gram of binder present in said material.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: June 9, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Peter Willems, Freddy Henderickx, Marcel Monbaliu
  • Patent number: 5665515
    Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process using a photographic material comprising on a support a silver halide emulsion layer and a layer containing physical development nuclei comprising the steps of:image-wise exposing said photographic material;developing a thus obtained image-wise exposed photographic material by guiding said image-wise exposed photographic material through an alkaline processing liquid comprising a hydrophobizing agent, in 15s or less andsubsequently guiding a thus obtained developed photographic material through a stabilizing liquid;characterized in that said stabilizing liquid comprises a compound having a mercapto-group having a pK.sub.a of 4.5 or less.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: September 9, 1997
    Assignee: Agfa-Gevaert N.V.
    Inventors: Lode Deprez, Marcel Monbaliu, Jean-Marie Dewanckele
  • Patent number: 5645971
    Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of image-wise exposing an imaging element comprising on a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei and developing said imaging element in the presence of developing agent(s) and silver halide solvent(s) using an alkaline processing liquid characterized in that said development is carried out in the presence of a meso-ionic compound. The present invention further provides an imaging element and alkaline processing liquid for use in said method.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: July 8, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Ludo Van Rompuy, Rene De Keyzer, Jean-Marie Dewanckele, Marcel Monbaliu, Jos Vaes
  • Patent number: 5599647
    Abstract: Toning agents are provided for use in thermographic and photothermographic materials, either on their own or in combination with at least one other toning agent, with improved compatibility with hydrophobic media as shown by reduced crystallization and reduced diffusion through the material, which properties enabling an improved imaging performance to be achieved and in particular a more neutral image tone after storage.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: February 4, 1997
    Assignee: Agfa-Gevaert N.V.
    Inventors: Geert Defieuw, Marcel Monbaliu, Jean-Marie Dewanckele
  • Patent number: 5541034
    Abstract: Heat-developable silver-based photosensitive imaging element comprising a heat-reducible organic silver salt, a photosensitive silver halide, a developing agent, and a releasing compound that upon reaction with either the reduced or the oxidized form of the developing agent is capable of releasing a hydrophobizing agent. The invention also relates to a method for producing a lithographic printing plate comprising image-wise exposing an imaging element, bringing the exposed element in face-to-face contact with an oleophobic surface of a printing plate precursor, heating the imaging element while in contact or before being brought in contact with the oleophobic surface to cause reduction of the organic silver salt and to cause the release of the hydrophobizing agent from the releasing compound, allowing the hydrophobizing agent to diffuse to the oleophobic surface to render the surface image-wise oleophilic, and separating the resulting lithographic printing plate from the imaging element.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: July 30, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Luc Leenders, Rudy Van Cleuvenbergen, Rudi De Busser, Marcel Monbaliu
  • Patent number: 5536618
    Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of exposing and developing an imaging element comprising on a support a silver halide emulsion layer and an image-receiving layer in the presence of a silver halide solvents corresponding to the following formula:Z.sup.1 --(R.sup.1 --X.sup.1).sub.n --(R.sup.2 --X.sup.2)--L--(X.sup.3 --R.sup.3)--(X.sup.4 --R.sup.4).sub.m --Z.sup.2 (I)wherein X.sup.1, X.sup.2, X.sup.3 and X.sup.4 each independently represents --S--, --NH-- or --N(R.sup.5 --Z.sup.3)--, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each independently represents an alkylene, an alkenylene or an alkynylene, n and m each independently represents an integer from 0 to 4, Z.sup.1, Z.sup.2 and Z.sup.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: July 16, 1996
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Rene De Keyzer, Paul Callant, Jean-Marie Dewanckele, Marcel Monbaliu
  • Patent number: 5529867
    Abstract: A photoconductive recording material containing a support and a charge generating layer (CGL) in contiguous relationship with a charge transporting layer (CTL) containing a n-charge transporting material (n-CTM), wherein the binder of said charge generating layer (CGL) is made insoluble in methylene chloride by crosslinking, and said binder is composed essentially of at least one resin (1) and/or (2) crosslinked with at least one polyisocyanate, said resin (1) before its crosslinking corresponding with general formula (I) as defined in the description, and said resin (2) being a dialkanolamine-modified epoxy resin.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: June 25, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventors: David Terrell, Stefaan De Meutter, Marcel Monbaliu
  • Patent number: 5506081
    Abstract: A photoconductive recording material described containing a support and a charge generating layer (CGL) in contiguous relationship with a charge transporting layer (CTL) containing a p-charge transporting material (p-CTM), wherein the charge generating layer (CGL) does not contain a charge transporting material but comprises a charge generating material and a binder, wherein the binder is made insoluble in methylene chloride by crosslinking and the binder which is composed essentially of one or more polyepoxy compounds self-crosslinked under the influence of an amine catalyst and/or crosslinked by reaction with at least one primary and/or secondary poly NH-group amine.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: April 9, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventors: David Terrell, Stefaan De Meutter, Marcel Monbaliu
  • Patent number: 5462822
    Abstract: A photographic print material suited for the production of a multicolor filter array element for use in a liquid crystal display device including a liquid crystal layer wherein the print material comprises a glass plate supporting on one side thereof (i) a silver halide emulsion layer sensitive to blue light and containing a yellow dye forming color coupler, (ii) a silver halide emulsion layer sensitive to green light and containing a magenta dye forming color coupler, and (iii) a sliver halide emulsion layer sensitive to red light and containing a cyan dye forming color coupler. The red light sensitive emulsion layer is disposed on the side of the array remote from the glass supporting plate and in each of the silver halide emulsion layers the equivalent ratio of silver halide to color coupler is at least 1 and preferably 1.2. A water-impermeable organic resin covering layer is applied over the red light sensitive emulsion layer and a transparent electrode layer is vacuum deposited over the covering layer.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: October 31, 1995
    Assignee: AGFA-GEVAERT N. V.
    Inventors: Raymond Roosen, Herman Van Gorp, Marcel Monbaliu
  • Patent number: 5340691
    Abstract: The present invention provides a method for making a lithographic printing plate accordig to the silver salt diffusion transfer process comprising the steps of:image-wise exposing an imaging element comprising on a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei,developing said imaging element in the presence of developing agent(s) and silver halide solvent(s) using an alkaline processing liquid andneutralizing the thus obtained developed imaging element using a neutralization liquid characterized in that said neutralization liquid contains a meso-ionic compound.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: August 23, 1994
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Jos Vaes, Jean-Marie Dewanckele, Marcel Monbaliu
  • Patent number: 5283156
    Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of image-wise exposing an imaging element comprising on a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei and developing said imaging element in the presence of developing agent(s) and silver halide solvent(s) using an alkaline processing liquid characterized in that said development is carried out in the presence of a regulator according to one of the formulas as specified in the claims. The present invention further provides an imaging element and alkaline processing liquid for use in said method.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: February 1, 1994
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Marcel Monbaliu, Rene De Keyzer, Jean-Marie Dewanckele, Jos Vaes, Ludo Van Rompuy